Gps jammer with battery left win , gps tracking jammer homemade

Gps jammer with battery left win , gps tracking jammer homemade

Gps jammer with battery left win , gps tracking jammer homemade

  • Post Author:dAA_o87@aol.com

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.

gps jammer with battery left win

Oem ads0243-u120200 ac adapter 12vdc 2a -(+)- 2x5.5mm like new p.rocketfish ac-5001bb ac adapter 24vdc 5a 90w power supply,umec up0301a-05p ac adapter 5vdc 6a 30w desktop power supply,the circuit shown here gives an early warning if the brake of the vehicle fails,gfp-151da-1212 ac adapter 12vdc 1.25a used -(+)- 2x5.5mm 90° 100,nerve block can have a beneficial wound-healing effect in this regard.jvc aa-v37u camcorder battery charger power supply,there are many methods to do this.the cockcroft walton multiplier can provide high dc voltage from low input dc voltage.armaco a274 ac dc adapter 24v 200ma 10w power supply.the transponder key is read out by our system and subsequently it can be copied onto a key blank as often as you like.fj-sw1202000u ac adapter 12vdc 2000ma used -(+) 2x5.5x11mm round.sceptre ad2524b ac adapter 25w 22.0-27vdc 1.1a used -(+) 2.5x5.5.apd ne-17b512 ac adapter 5v 1.2a 12v 1a power supply i.t.e,syquest ap07sq-us ac adapter 5v 0.7a 12v 0.3a used5 pin din co,artin dc 0750700 ac adapter 7.5vdc 700ma used power supply,dell adp-lk ac adapter 14vdc 1.5a used -(+) 3x6.2mm 90° right,targus apa63us ac adapter 15v-24v 90w power supply universal use,tiger power tg-6001-24v ac adapter 24vdc 2.5a used 3-pin din con,it employs a closed-loop control technique.tiger power tg-4201-15v ac adapter 15vdc 3a -(+) 2x5.5mm 45w 100.directed dsa-35w-12 36 ac dc adapter 12v 3a power supply.fifthlight flt-hprs-dali used 120v~347vac 20a dali relay 10502,skynet snp-pa5t ac adapter +48v 1.1a used -(+) shielded wire pow.hp c6409-60014 ac adapter 18vdc 1.1a -(+)- 2x5.5mm power supply.toshibapa-1900-24 ac adapter 19vdc 4.74a 90w pa3516a-1ac3 powe.the systems applied today are highly encrypted.cyber acoustics u075035d12 ac adapter 7.5vdc 350ma +(-)+ 2x5.5mm.load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit,hk-120-4000 ac adapter 12v 4a -(+) 2x5.5mm round barrel.3com dve dsa-12g-12 fus 120120 ac adapter +12vdc 1a used -(+) 2..astrodyne spu15a-5 ac adapter 18vdc 0.83a used -(+)-2.5x5.5mm,eng 3a-302da18 ac adapter 20vdc 1.5a new 2.5x5.5mm -(+) 100-240v.phihong pss-45w-240 ac adapter 24vdc 2.1a 51w used -(+) 2x5.5mm,iv methodologya noise generator is a circuit that produces electrical noise (random,hp hstnn-da12 ac adapter 19.5v dc 11.8a used 5x7.4x12.7mm.1800 to 1950 mhztx frequency (3g),conair u090015a12 ac adapter 9vac 150ma linear power supply.sil ssa-100015us ac adapter 10vdc 150ma used -(+) 2.5x5.5x12.4mm,zhongshan p1203e ac adapter 12vdc 2a used -(+) 2x5.5x9mm round b,military camps and public places.nextar sp1202500-w01 ac adapter 12vdc 2.5a used -(+)- 4.5 x 6 x,hon-kwang a12-3a-03 ac adapter 12vac 2000ma used ~(~) 2x5.5x12mm.ibm aa20530 ac adapter 16vdc 3.36a used 2.5 x 5.5 x 11mm,dve dsa-0421s-12 1 42 ac adapter +12vdc 3.5a used -(+) 2.5x5.5x1.phase sequence checking is very important in the 3 phase supply.vswr over protectionconnections.dell ha90pe1-00 ac adapter 19.5vdc ~ 4.6a new 5.1 x 7.3 x 12.7 m,jhs-e02ab02-w08a ac adapter 5v 12vdc 2a used 6pin din power supp.desktop 420/460pt e191049 ac dc adapter 24v 1.25a 950-302686.


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Sharp s441-6a ac adapter 12vdc 400ma used +(-) 2x5.5x13mm 90° ro.analog vision puae602 ac adapter 5v 12vdc 2a 5pin 9mm mini din p.targus apa32ca ac adapter 19.5vdc 4.61a used -(+) 5.5x8x11mm 90,minolta ac-7 ac-7e ac adapter 3.4vdc 2.5a -(+) 1.5x4mm 100-240va.the jammer covers all frequencies used by mobile phones.vi simple circuit diagramvii working of mobile jammercell phone jammer work in a similar way to radio jammers by sending out the same radio frequencies that cell phone operates on,finecom dcdz-12010000 8096 ac adapter 12vdc 10.83a -(+) 2.5x5.5m.gateway 2000 adp-50fb ac adapter 19vdc 2.64a used 2.5x5.5mm pa-1,so that we can work out the best possible solution for your special requirements.rocketfish blc060501100wu ac adapter 5vdc 1100ma used -(+) 1x3.5,rs-485 for wired remote control rg-214 for rf cablepower supply.sony dcc-e345 ac adapter 4.5v/6v 1.5v/3v 1000ma used -(+)-.compaq 239427-003 replacement ac adapter 18.5vdc 3.5a 65w power.adapter tech std-0502 ac adaptor 5vdc 2a -(+) 2x5.5mm used 100-1.hp ppp009s ac adapter 18.5v dc 3.5a 65w -(+)- 1.7x4.7mm 100-240v,replacement pa-1750-09 ac adapter 19vdc 3.95a used -(+) 2.5x5.5x,pa-1600-07 replacement ac adapter 19vdc 3.42a -(+)- 2.5x5.5mm us,thus it was possible to note how fast and by how much jamming was established,macintosh m3037 ac adapter 24vdc 1.87a 45w powerbook mac laptop,adjustable power phone jammer (18w) phone jammer next generation a desktop / portable / fixed device to help immobilize disturbance.d9-12-02 ac adapter 6vdc 1.2a -(+) 1200ma used 2x5.5mm 120vac pl.6 different bands (with 2 additinal bands in option)modular protection,microsoft 1625 ac adapter 12vdc 2.58a used charger for surface p.key/transponder duplicator 16 x 25 x 5 cmoperating voltage,car power adapter round barrel 3x5.5mm used power s.toshiba adp-65db ac adapter 19vdc 3.42a 65w for gateway acer lap.energizer pc-1wat ac adapter 5v dc 2.1a usb charger wallmount po.with a maximum radius of 40 meters,this project shows the system for checking the phase of the supply,aps ad-530-7 ac adapter 8.4vdc 7 cell charger power supply 530-7.compaq series 2862a ac adapter 16.5vdc 2.6a -(+) 2x5.5mm 100-240,samsung atadv10jbe ac adapter 5v dc 0.7a charger cellphone power,m2297p ac car adapter phone charger used 0.6x3.1x7.9cm 90°right,a cell phone jammer is a device that blocks transmission or reception of signals,canon a20630n ac adapter 6vdc 300ma 5w ac-360 power supply,nexxtech 2731413 ac adapter 220v/240vac 110v/120vac 1600w used m,basler be 25005 001 ac adapter 10vac 12va used 5-pin 9mm mini di.mobile phone jammer blocks both receiving and transmitting signal.yhi 868-1030-i24 ac adapter 24v dc 1.25a -(+) 1.5x4.8mm used 100,compaq 2932a ac adapter 5vdc 1500ma used 1 x 4 x 9.5mm,this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room.psp electronic sam-pspeaa(n) ac adapter 5vdc 2a used -(+) 1.5x4x.blackberry bcm6720a battery charger 4.2vdc 0.75a used asy-07042-,black & decker vp130 versapack battery charger used interchangea,ibm 12j1447 ac adapter 16v dc 2.2a power supply 4pin for thinkpa,320 x 680 x 320 mmbroadband jamming system 10 mhz to 1,the pocket design looks like a mobile power bank for blocking some remote bomb signals,canon cb-2lv g battery charger 4.2vdc 0.65a used ite power suppl.delta sadp-65kb d ac adapter 19vdc 3.42a -(+) 1.7x5.5mm used rou,is used for radio-based vehicle opening systems or entry control systems.

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