Advances in Sensor Array Processing Technology

Quickest Detection of a Random Signal in Background Noise Using a Sensor Array

The problem of detecting the onset of a signal impinging at an unknown angle on a sensor array is considered. An algorithm based on parallel CUSUM tests matched to each of a set of discrete beamforming angles ...

Authors: Taragay Oskiper and H. Vincent Poor

Registration-Based Range-Dependence Compensation for Bistatic STAP Radars

We address the problem of detecting slow-moving targets using space-time adaptive processing (STAP) radar. Determining the optimum weights at each range requires data snapshots at neighboring ranges. However, ...

Authors: Fabian D. Lapierre and Jacques G. Verly

Tracking of Multiple Moving Sources Using Recursive EM Algorithm

We deal with recursive direction-of-arrival (DOA) estimation of multiple moving sources. Based on the recursive EM algorithm, we develop two recursive procedures to estimate the time-varying DOA parameter for ...

Authors: Pei-Jung Chung, Johann F. Böhme and Alfred O. Hero

A Root-MUSIC-Like Direction Finding Method for Cyclostationary Signals

We propose a new root-MUSIC-like direction finding algorithm that exploits cyclostationarity in order to improve the direction-of-arrival estimation. The proposed cyclic method is signal selective, it allows t...

Authors: Pascal Chargé and Yide Wang

On Improvements of Cyclic MUSIC

Many man-made signals encountered in communications exhibit cyclostationarity. By exploiting cyclostationarity, cyclic MUSIC has been shown to be able to separate signals with different cycle frequencies, thus...

Authors: Huiqin Yan and H. Howard Fan

Determining the Number of Discrete Alphabet Sources from Sensor Data

Determining the number of sources in a received wave field is a well-known and a well-investigated problem. In this problem, the number of sources impinging on an array of sensors is to be estimated. The commo...

Authors: Eran Fishler, Michael Grosman and Hagit Messer

Direct Position Determination of Multiple Radio Signals

The most common methods for position determination of radio signal emitters such as communications or radar transmitters are based on measuring a specified parameter such as angle of arrival (AOA) or time of a...

Authors: Anthony J. Weiss and Alon Amar

Vector-Sensor MUSIC for Polarized Seismic Sources Localization

This paper addresses the problem of high-resolution polarized source detection and introduces a new eigenstructure-based algorithm that yields direction of arrival (DOA) and polarization estimates using a vect...

Authors: Sebastian Miron, Nicolas Le Bihan and Jérôme I. Mars

Subband Array Implementations for Space-Time Adaptive Processing

Intersymbol interference (ISI) and cochannel interference (CCI) are two primary sources of signal impairment in mobile communications. In order to suppress both ISI and CCI, space-time adaptive processing (STA...

Authors: Yimin Zhang, Kehu Yang and Moeness G. Amin

Performance of GCC- and AMDF-Based Time-Delay Estimation in Practical Reverberant Environments

Recently, there has been an increased interest in the use of the time-delay estimation (TDE) technique to locate and track acoustic sources in a reverberant environment. Typically, the delay estimate is obtain...

Authors: Jingdong Chen, Jacob Benesty and Yiteng (Arden) Huang

Editorial

Authors: Joe C. Chen and Amin G. Jaffer