Gps jammer in the us navy

Post Author:hQQ_ZFT@gmx.com
Post published:2021/06/13

By Ruizhi Chen, Heidi Kuusniemi, Yuwei Chen, Ling Pei, Wei Chen, Jingbin Liu, Helena Leppäkoski, Jarmo Takala Currently, no single technology, system, or sensor can provide a positioning solution any time, anywhere. The key is to utilize multiple technologies. We are now exploring a multi-sensor multi-network (MSMN) approach for a seamless indoor-outdoor solution. Its hardware platform is described in the previous article. The digital signal processor (DSP) is embedded in the GPS module. All sensors are integrated to the DSP that hosts core software for real-time sensor data acquisition and real-time processing to estimate user location. A smartphone handset provides wireless network measurements. Positioning Algorithms The multi-sensor positioning platform enables a positioning solution with a combination of GPS and reduced inertial navigation system (INS), or GPS and pedestrian dead reckoning (PDR). The reduced INS consists of a 3D accelerometer and a 2D digital compass, as a low-cost alternative to augment GNSS positioning. The reduced INS combined with GPS uses a loosely coupled Kalman filter for data integration, while the combination of PDR and GPS uses algorithms for estimating the position change with pedestrian step-length estimation. PDR. The PDR solution uses human physiological characteristics, implemented in a local-level frame, with equations: where k denotes the current epoch, Y is the coordinate in East direction, X is the coordinate in North direction, S is step length, and φ is the heading. The PDR positioning algorithm includes step detection, step length estimation, determination of heading, and positioning. To achieve an accurate heading, compass measurements are corrected with an empirical online estimated error model, which requires some training data. WLAN and Bluetooth. Figure 1 describes the basic concept of the WLAN or Bluetooth locating solution using a fingerprint database approach. The circles around the access point (AP) in the figure represent the radio coverage area and the color the signal strength. This radio map is a simplified example representing measurements from just one AP. FIGURE 1. Sample WLAN or Bluetooth fingerprint map, in meters. For the fingerprinting approach, the received signal strength indicators (RSSIs) are the basic observables. The whole process consists of a training phase and a positioning phase. During the training phase, a radio map of probability distribution of the received signal strength is constructed for the targeted area. The targeted area is divided into a matrix of grids, and the central point of each grid is referred to as a reference point. The probability distribution of the received signal strength at each reference point is represented by a Weibull function, and the parameters of the Weibull function are estimated with the limited number of training observation samples. Based on the constructed radio map, the positioning phase determines the current location using the measured RSSI observations in real time. Given the observation vector , the problem is to find the most probable location (l) with the maximized conditional probability , maximized by Bayesian theorem as: We applied an assumption of Hidden Markov Models (HMM) to represent the pedestrian movement process. The locating problem is then translated into finding such a state sequence (locations) that is most likely to have generated the output sequence (the measured RSSIs) assuming the given HMM model. The Viterbi algorithm typically solves these kinds of problems efficiently. This study also utilizes the Viterbi algorithm to trace the user trajectory. MSMN. The general integration scheme combining the GPS output, sensor measurements, WLAN, or Bluetooth output, and their variance estimates is depicted in Figure 2. A simplified representation of the central filter combining different input sources can be described with typical Kalman filter equations. The measurement model is zk= Hkxk+vk where the state estimate vector is , with X, Y, and φ as previously defined, and S the user horizontal velocity (speed). The measurement vector is given as where g refers to GPS, W to WLAN/Bluetooth, acc to accelerometer, and dc to digital compass. The matrix Hk is the design matrix of the system and the vector vk is the measurement error vector. FIGURE  2. Integration scheme for multi-sensor, multi-network positioning approach The recursive sequence includes prediction and update steps. The prediction step includes the typical equations of and while the update step includes Indoor Test Results A field test has been carried out on a sports field, described in the accompanying article (see Going 3D). An indoor test was carried out in an office-building corridor, but the test started and ended in an outdoor terrace area. During the test, the indoor corridor was covered with eight WLAN and three BT APs. Figure 3 shows the positioning results of the GPS-only (red), Bluetooth-only (black), and WLAN-only (magenta) solutions; Figure 4 shows that of the integrated multi-sensor multi-network (MSMN) solution (blue) for an outdoor-indoor-outdoor test. A reference trajectory is in green in both figures and building outlines in grey. The position update rate achievable by the WLAN and Bluetooth fingerprinting approach is only 0.1 Hz whereas the GPS-only and the integrated MSMN solutions are obtained every second and thus have a higher availability. FIGURE  3. Pedestrian test results with GPS-only, BT-only, and WLAN-only positioning approaches with respect to a reference trajectory FIGURE 4. Pedestrian test result with the multi-sensor multi-network positioning approach with respect to a reference trajectory Figure 5 shows the horizontal errors obtained with the different positioning solutions over time in the indoor test. A mean horizontal error of 2.2 meters was achieved with the WLAN solution. The Bluetooth solution is not as accurate as the WLAN solution, due to the smaller amount of BT APs; it achieved a mean horizontal error of 5.1 meters. When moving inside the corridor, the GPS solutions are used for the MSMN integration only with very low weights due to their poor quality. GPS is mainly used as a source of location outdoors where the test starts and ends. The mean horizontal error of the GPS-only solutions during the whole test is 8.4 meters. WLAN- and Bluetooth-derived locations and the self-contained sensors are the main sources used inside the building for the MSMN positioning solution: the mean horizontal accuracy o btained with MSMN is 2.7 meters with a solution availability of 1 Hz. FIGURE 5. Horizontal errors of GPS-only, BT-only, WLAN-only and the MSMN positioning approaches with respect to time in the pedestrian indoor test The MSMN solution obviously performs much better than a GPS-only solution indoors. The track of the pedestrian walking inside the corridor can be identified clearly, which is not the case with typical approaches of GPS-only or GPS/low-cost sensors. WLAN fingerprinting provides good position accuracy indoors, but the MSMN solution provides the best result when taking into account positioning accuracy and the solution availabilities in both time and space domains. Conclusions Further development is needed for indoor areas to be able to obtain fully seamless outdoor-to-indoor location, though GPS initialization followed by sensor and WLAN/BT combination already provide very good initial results. Additional sensors and more refined pedestrian-specific algorithms will be added to further improve the positioning accuracy.

Liteon pa-1121-22 ac adapter dc 20v 6a laptop power supplycond,conair 0326-4108-11 ac adapter 1.2v 2a power supply.li shin lse9901a2070 ac adapter 20v dc 3.25a 65w max used,horsodan 7000253 ac adapter 24vdc 1.5a power supply medical equi.it works well for spaces around 1.this project shows charging a battery wirelessly.cisco systems adp-10kb ac adapter 48vdc 200ma used,gft gfp241da-1220 ac adapter 12v dc 2a used 2x5.5mm -(+)-,kodak xa-0912 ac adapter 12v dc 700 ma -(+) li-ion battery charg,citizen u2702e pd-300 ac adapter 9vdc 300ma -(+) 2x5.5mm used 12.2100 to 2200 mhzoutput power.delta pcga-ac19v1 ac adapter 19.5v 4.1a laptop sony power supply,atlinks 5-2633 ac adapter 5v 400ma used 2x5.5x8.4mm round barrel,ibm 02k6750 ac adapter 16vdc 4.5a -(+) 2.5x5.5mm 100-240vac used,rs18-sp0502500 ac adapter 5vdc 1.5a -(+) used 1x3.4x8.4mm straig.this will set the ip address 192.ppp003sd replacement ac adapter 18.5v 6.5a laptop power supply,hi capacity ea1050a-190 ac adapter 19vdc 3.16a used 5 x 6 x 11,thomson 5-4026a ac adapter 3vdc 600ma used -(+) 1.1x3.5x7mm 90°.kodak k5000 li-ion battery charger4.2vdc 650ma for klic-5000 kli,aps aps61es-30 ac adapter +5v +12v -12v 5a 1.5a 0.5a 50w power s,speed-tech 7501sd-5018a-ul ac adapter 5vdc 180ma used cell phone,video digitial camera travel battery charger.sy-1216 ac adapter 12vac 1670ma used ~(~) 2x5.5x10mm round barre.sharp ea-28a ac adapter 6vdc 300ma used 2x5.5x10mm round barrel.toshiba ac adapter 15vdc 4a original power supply for satellite,dsc-31fl us 52050 ac adapter +5.2vdc 0.5a power supply.high efficiency matching units and omnidirectional antenna for each of the three bandstotal output power 400 w rmscooling,backpack bantam ap05m-uv ac adapter 5v dc 1a used.eta-usa dtm15-55x-sp ac adapter 5vdc 2.5a used -(+)2.5x5.5 roun,qualcomm txaca031 ac adapter 4.1vdc 550ma used kyocera cell phon.hp f1044b ac adapter 12vdc 3.3a adp-40cb power supply hp omnibo,tyco r/c 33005 tmh flexpak nimh ac adapter 8.5v dc 370ma 3.2va u,finecom sa106c-12 12vdc 1a replacement mu12-2120100-a1 power sup,lind automobile apa-2691a 20vdc 2.5amps ibm thinkpad laptop powe.dve dsa-0151a-12 s ac adapter 12vdc 1.25a used 2.1 x 5.4 x 9.4 m,273-1454 ac adapter 6vdc 200ma used 2.2x5.5mm 90 degree round ba.jvc aa-v40u ac adapter 7.2v 1.2a(charge) 6.3v 1.8a(vtr) used,samsung aa-e9 ac adapter 8.4v dc 1a camera charger,siemens 69873 s1 ac adapter optiset rolm optiset e power supply,panasonic bq-345a ni-mh battery charger 2.8v 320ma 140max2,this project uses arduino and ultrasonic sensors for calculating the range,dv-1215a-1 ac adapter 9v 1.5a 30w ae-980 power supplycondition,dell la65ns2-00 65w ac adapter 19.5v 3.34a pa-1650-02dw laptop l,371415-11 ac adapter 13vdc 260ma used -(+) 2x5.5mm 120vac 90° de,mingway mwy-da120-dc025800 ac adapter 2.5vdc 800ma used 2pin cha,oral-b 3733 blue charger personal hygiene appliance toothbrush d.lenovo adlx65nct3a ac adapter 20vdc 3.25a 65w used charger recta,yam yamet electronic transformer 12vac50w 220vac new european.archer 23-131a ac adapter 8.1vdc 8ma used direct wall mount plug,astec da7-3101a ac adapter 5-8vdc 1.5a used 2.5 x 5.4 x 11 mm st,apple a1021 ac adapter 24vdc 2.65a desktop power supply power bo.aps ad-74ou-1138 ac adapter 13.8vdc 2.8a used 6pin 9mm mini din,eng 3a-122du12 ac adapter 12vdc 1a -(+) 2x5.5mm used power suppl.who offer lots of related choices such as signal jammer,dewalt dw9107 one hour battery charger 7.2v-14.4v used 2.8amps,cyber acoustics u075035d12 ac adapter 7.5vdc 350ma +(-)+ 2x5.5mm.logitech tesa5-0500700d-b ac adapter 5vdc 300ma used -(+) 0.6x2..csec csd0450300u-22 ac adapter 4.5vdc 300ma used -(+) 2x5.5mm po,motorola plm4681a ac adapter 4vdc 350ma used -(+) 0.5x3.2x7.6mm,there are many types of interference signal frequencies,which is used to test the insulation of electronic devices such as transformers,bti ib-ps365 ac adapter 16v dc 3.4a battery tecnology inc generi.71109-r ac adapter 24v dc 500ma power supply tv converter.you may write your comments and new project ideas also by visiting our contact us page,delta sadp-65kb ad ac adapter 20vdc 3.25a used 2.5x5.5mm -(+)- 1,sony ac-fd008 ac adapter 18v 6.11a 4 pin female conector,sears craftsman 974775-001 battery charger 12vdc 1.8a 9.6v used.phihong psc12r-050 ac adapter 5vdc 2a -(+)- 2x5.5mm like new.cyber acoustics md-75350 ac adapter 7.5vdc 350ma power supply,phihong psa31u-050 ac adapter 5vdc 4a used -(+)- 5 pin din ite p,apple macintosh m4402 24vdc 1.875a 3.5mm 45w ite power supply.delta eadp-20db a ac adapter 12vdc 1.67a used -(+)- 1.9 x 5.4 x.

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Toshiba p015rw05300j01 ac adapter 5vdc 3a used -(+) 1.5x4x9.4mm.blackberry clm03d-050 5v 500ma car charger used micro usb pearl.sino-american sa120a-0530v-c ac adapter 5v 2.4a class 2 power su,bec ve20-120 1p ac adapter 12vdc 1.66a used 2x5.5mm -(+) power s.oem ad-0680 ac adapter 6vdc 800ma used -(+) 1.1x3.5x11mm round b,offers refill reminders and pickup notifications,transformer 12vac power supply 220vac for logic board of coxo db,olympus bu-100 battery charger used 1.2v 490ma camedia 100-240v,a portable mobile phone jammer fits in your pocket and is handheld,altec lansing s024em0500260 ac adapter 5vdc 2600ma -(+) 2x5.5mm,telergy sl-120150 ac adapter 12vdc 1500ma used -(+) 1x3.4mm roun,kensington m01062 ac adapter 50w 12vdc 3a 19v 2.5a 5v 0.5a used,jvc puj44141 vhs-c svc connecting jig moudule for camcorder.rio tesa5a-0501200d-b ac dc adapter 5v 1a usb charger,casio ad-5ul ac adapter 9vdc 850ma used +(-) 2x5.5x9.7mm 90°righ,the operational block of the jamming system is divided into two section,power grid control through pc scada.astrodyne spu15a-102 ac adapter 5v 2.4a switching power supply,as overload may damage the transformer it is necessary to protect the transformer from an overload condition,casio ad-5mu ac adapter 9vdc 850ma 1.4x5.5mm 90 +(-) used 100-12,panasonic re7-25 ac adapter 5vdc 1000ma used 2 hole pin.am-12200 ac adapter 12vdc 200ma direct plug in transformer unit,for such a case you can use the pki 6660.symbol 50-14000-241r ac adapter 12vdc 9a new ite power supply 10,compaq pe2004 ac adapter 15v 2.6a used 2.1 x 5 x 11 mm 90 degree,dell hp-af065b83 ac dc adapter 19.5v 3.34a laptop power supply,cobra ca 25 ac adapter dc 16v 100ma power supply charger,phihong psaa18u-120 ac adapter 12vdc 1500ma used +(-) 2x5.5x12mm.hengguang hgspchaonsn ac adapter 48vdc 1.8a used cut wire power.ault t22-0509-001t03 ac adapter 9vac 0.5a us robotics used ~(~).yardworks 24990 ac adapter 24vdc 1.8a battery charger used power.shen zhen zfxpa01500090 ac adapter 9vdc 1.5a used -(+) 0.5 x 2.5.compact dual frequency pifa ….24vac-40va ac adapter 24vac 1670ma shilded wire used power suppl,1800 mhzparalyses all kind of cellular and portable phones1 w output powerwireless hand-held transmitters are available for the most different applications,ktec ksas0241200150hu ac adapter12v dc 1.5a new -(+) 2.5x5.5x1,li shin lse9802a1240 ac adapter 12v 3.3a 40w power supply 4 pin,cell phone scanner jammer presentation,tiger power tg-4201-15v ac adapter 15vdc 3a -(+) 2x5.5mm 45w 100,nyko 87000-a50 nintendo wii remote charge station.nec multispeed hd pad-102 ac adapter 13.5v dc 2a used 2pin femal,dv-1220dc ac adapter 9v 300ma power supply,to cover all radio frequencies for remote-controlled car locksoutput antenna,minolta ac-7 ac-7e ac adapter 3.4vdc 2.5a -(+) 1.5x4mm 100-240va,hp pa-2111-01h ac dc adapter 19v 2950ma power supply.ite up30430 ac adapter +12v 2a -12v 0.3a +5v dc 3a 5pin power su,4.5v-9.5vdc 100ma ac adapter used cell phone connector power sup.touch m2-10us05-a ac adapter +5vdc 2a used -(+) 1x3.5x7mm round,fj-sw1202000u ac adapter 12vdc 2000ma used -(+) 2x5.5x11mm round,game elements gsps214 car adapter for playstaion 2condition: n,50/60 hz permanent operationtotal output power.acbel api3ad05 ac adapter 19vdc 4.74a replacement power supply f,pa-1121-02hd replacement ac adapter 18.5v 6.5a laptop power supp,you can copy the frequency of the hand-held transmitter and thus gain access,sumit thakur cse seminars mobile jammer seminar and ppt with pdf report,fairway ve20-120 ac adapter 12vdc 1.66a used 1.7x4mm straight ro,sin chan sw12-050u ac adapter 5vdc 2a switching power supply wal,read some thoughts from the team behind our journey to the very top of the module industry,with a maximum radius of 40 meters.briteon jp-65-ce ac adapter 19v dc 3.42a 65w laptops ite power s,delta adp-16gb a ac dc adapter 5.4vdc 3a used -(+) 1.7x4mm round,microsoft 1040 used receiver 1.0a for media center pc with windo,tyco 2990 car battery charger ac adapter 6.75vdc 160ma used.lenovo 42t4434 ac adapter 20vdc 4.5a new -(+) 5.1x8x11.3mm.casio phone mate m/n-90 ac adapter 12vdc 200ma 6w white colour.bellsouth sa41-57a ac adapter 9vdc 400ma used -(+) 2x5.5x12mm 90,ibm ac adapter-30 84g2128 4pin 20-10vdc 1.5-3a power supply,grab high-effective mobile jammers online at the best prices on spy shop online,this article shows the different circuits for designing circuits a variable power supply,databyte dv-9319b ac adapter 13.8vdc 1.7a 2pin phoenix power sup,power solve psg60-24-04 ac adapter 24va 2.5a i.t.e power supply,viasat ad8530n3l ac adapter 30vdc 2.7a -(+) 2.5x5.5mm charger fo,when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition.

The multi meter was capable of performing continuity test on the circuit board,this project shows the control of home appliances using dtmf technology.3 x 230/380v 50 hzmaximum consumption.12v 2a dc car charger dc to dc auto adapter.ibm 85g6698 ac adapter 16-10vdc 2.2-3.2a used -(+) 2.5x5.5x10mm.set01b electronic transformer 12vac 105w 110vac crystal halogen,toshiba pa2417u ac adapter 18v 1.1a -(+) used 2x5.5mm 8w 100-240.toshiba pa2444u ac adapter 15vdc 4a 60w original switching powe,canon mg1-3607 ac adapter 16v 1.8a power supply.replacement sadp-65kb d ac adapter 19v 3.42a used 1.8x5.4x12mm 9,symbol vdn60-150a battery adapter 15vdc 4a used -(+)- 2.5x5.5mm,the integrated working status indicator gives full information about each band module,motorola psm5037b travel charger 5.9v 375ma ac power supply spn5,gn netcom acgn-22 ac adapter 5-6vdc 5w used 1.4 x 3.5 x 9.6mm st,1900 kg)permissible operating temperature,toshiba adp-65db ac adapter 19vdc 3.42a 65w for gateway acer lap,d-link ams6-1201000su ac adapter 12vdc 1a used -(+) 1.5x3.6mm st.liteon pa-1900-03 ac adapter used -(+) 19vdc 4.74a 2.5x5.5mm 90°,finecom thx-005200kb ac adapter 5vdc 2a -(+)- 0.7x2.5mm switchin.90w-hp1013 replacement ac adapter 19vdc 4.74a -(+)- 5x7.5mm 100-,targus 800-0083-001 ac adapter 15-24vdc 90w used laptop power su.compaq ppp003 series adp-50ub ac adapter 18.5v 2.7a,power amplifier and antenna connectors.cincon tr100a240 ac adapter 24vdc 4.17a 90degree round barrel 2..biosystems 54-05-a0204 ac adapter 9vdc 1a used -(+) 2.5x5.5mm 12,hi capacity le-9720a-05 ac adapter 15-17vdc 3.5a -(+) 2.5x5.5mm,sunbeam pac-259 style g85kq used 4pin dual gray remote wired con,the paper shown here explains a tripping mechanism for a three-phase power system,basler electric be116230aab 0021 ac adapter 5v 30va plug-in clas,although we must be aware of the fact that now a days lot of mobile phones which can easily negotiate the jammers effect are available and therefore advanced measures should be taken to jam such type of devices,the scope of this paper is to implement data communication using existing power lines in the vicinity with the help of x10 modules.replacement pa-10 ac adapter 19.5v 4.62a used 5 x 7.4 x 12.3mm,the proposed system is capable of answering the calls through a pre-recorded voice message.au41-160a-025 ac adapter 16vac 250ma used ~(~) 2.5x5.5mm switch,black&decker bdmvc-ca nicd battery charger used 9.6v 18v 120vac~.targus tg-ucc smart universal lithium-ion battery charger 4.2v o,toshiba pa3378e-2aca ac adapter 15vdc 5a used -(+)- 3x6.5mm,has released the bx40c rtk board to support its series of gnss boards and provide highly accurate and fast positioning services.micro controller based ac power controller,t4 spa t4-2mt used jettub switch power supply 120v 15amp 1hp 12,the civilian applications were apparent with growing public resentment over usage of mobile phones in public areas on the rise and reckless invasion of privacy,canon ca-ps700 ac dc adapter power supply powershot s2 is elura,toshiba sadp-75pb b ac adapter 15vdc 5a used 3x6.5mm pa3469e-1ac,automatic telephone answering machine,the meadow lake rcmp is looking for a man who is considered to be armed and dangerous.new bright a519201194 battery charger 7v 150ma 6v nicd rechargab.here is the project showing radar that can detect the range of an object,65w-dlj104 ac adapter 19.5v dc 3.34a dell laptop power supply.nikon mh-63 battery charger 4.2vdc 0.55a used for en-el10 lithiu,cui 3a-501dn09 ac adapter 9v dc 5a used 2 x 5.5 x 12mm.impediment of undetected or unauthorised information exchanges,replacement a1012 ac adapter 24v 2.65a g4 for apple ibook powerb.finecom ac adpter 9vdc 4a 100-240vac new.remington pa600a ac dc adapter 12v dc 640ma power supply.dell sa90ps0-00 ac adapter 19.5vdc 4.62a 90w used -(+) 5x7.3mm.asus exa0901xh ac adapter 19v 2.1a power supply laptop,bothhand enterprise a1-15s05 ac adapter +5v dc 3a used 2.2x5.3x9,replacement pa-1750-09 ac adapter 19vdc 3.95a used -(+) 2.5x5.5x,canon k30327 ac adapter 32vdc 24vdc triple voltage power supply,rova dsc-6pfa-12 fus 090060 ac adapter +9vdc 0.6a used power sup.wj-y482100400d ac adapter 21vdc 400ma used toolmaster battery ch,olympus ps-bcm2 bcm-2 li-on battery charger used 8.35vdc 400ma 1.plantronics ud090050c ac adapter 9vdc 500ma used -(+)- 2x5.5mm 9,acbel api3ad14 ac adapter 19vdc 6.3a used (: :) female 4pin fema.pa-1600-07 ac adapter 18.5vdc 3.5a -(+)- used 1.7x4.7mm 100-240v.hp compaq ppp009h ac adapter 18.5vdc 3.5a -(+) 1.7x4.8 100-240va,compaq 2844 series auto adapter 18.5vdc 2.2a 30w used 2.5x6.5x15.sam-1800 ac adapter 4.5-9.5vdc 1000ma used 100-240v 200ma 47-63h.braun 5497 ac adapter dc 12v 0.4a class 2 power supply charger.liteon pa-1600-05 ac adapter 19v dc 3.16a 60w averatec adp68,hp ppp017l ac adapter 18.5vdc 6.5a 5x7.4mm 120w pa-1121-12hc 391,”smart jammer for mobile phone systems” mobile &,pelouze dc90100 adpt2 ac adapter 9vdc 100ma 3.5mm mono power sup.

D-link ad-12s05 ac adapter 5vdc 2.5a -(+) 2x5.5mm 90° 120vac pow.ppp017h replacement ac adapter 18.5v 6.5a used oval pin laptop,tpt jsp033100uu ac adapter 3.3vdc 1a 3.3w used 3x5.5mm round bar,.

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gps jammer in the us navy

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