This paper studies the use of directional antennas for received signal strength difference (RSSD) based localization using ultra-wideband and demonstrates the achievable accuracy with this localization method applied to UWB. As introduced in our previous work the RSSD localization is assisted with one Time Difference of Arrival (TDOA) estimation. The use of directional receiving antennas and an...

A wireless sensor network (WSN) consists of spatially distributed autonomous devices using sensors connected via a wireless link. Sensors may be designed for pressure, temperature, sound, vibration, motion... Initially WSN were developed for military applications (battlefield surveillance). Now, many civilian applications (environment monitoring, home automation, traffic control) may take advan...

Distance estimation plays an important role in location-based services, which has become very popular in recent years. In this paper, a new short range cricket sensor-based approach is proposed for indoor location applications. This solution uses Time Difference of Arrival (TDoA) between an optical and an ultrasound signal which are transmitted simultaneously, to estimate the distance from the ...

A microphone array can be used to locate a dominant acoustic source in a given environment. This capability is successfully employed to locate an active talker in teleconferencing or other multi-speaker applications. In this work the source location is obtained in two steps: 1) a Time Difference Of Arrival (TDOA) computation between the signals of the array; 2) an \optimal" source location base...

Video conference systems have been widely used. A fix video camera shoots a scene is lacking in changes. There is a method that the computer-controlled camera shoots and finds the sound source. Microphone arrays and distributed microphone arrays are used to localize the sound source based on time delay of arrival (TDOA). In order to minimize the error rate of TDOA, a set of 4 microphone arrays ...

This paper develops the model of joint phantom track deception and techniques time-difference arrival (TDOA) frequency-difference (FDOA) localization to deceive air defense radar networks under condition that an unmanned aerial vehicle (UAV) swarm has no prior knowledge radars’ precise locations, related performance experiment analysis are presented demonstrate effectiveness proposed method cla...

Multiple platform coherent location systems operate by computing the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) among signals received at geographically separated platforms. The bandwidth of the data link is the major bottleneck in the processing. Previously developed data compression methods [1, 2] can not satisfy the compression ratio and the accuracy require...

The problem of position estimation from Time Difference Of Arrival (TDOA) measurements occurs in a range of applications from wireless communication networks to electronic warfare positioning. Correlation analysis of the transmitted signal to two receivers gives rise to one hyperbolic function. With more than two receivers, we can compute more hyperbolic functions, which ideally intersect in on...

A novel algorithm for source location by utilizing the time difference of arrival (TDOA) measurements of a signal received at spatially separated sensors is proposed. The algorithm is based on quadratic constraint total least-squares (QC-TLS) method and gives an explicit solution. The total least-squares method is a generalized data fitting method that is appropriate for cases when the system m...