Target Motion Analysis With Bearings And Frequencies Measurements

Conference PaperinCircuits, Systems and Computers, 1977. Conference Record. 1977 11th Asilomar Conference on 1:458 - 462 · February 1988with16 Reads
DOI: 10.1109/ACSSC.1988.754037 · Source: IEEE Xplore
Conference: Signals, Systems and Computers, 1988. Twenty-Second Asilomar Conference on, Volume: 1
Abstract
First Page of the Article
    • "Sound speed in air is 340 m/s. Target radiates single 300Hz tone and is known by the observer [33, 34]. The target starts from (−1, 4). "
    [Show abstract] [Hide abstract] ABSTRACT: For maneuvering target Doppler-bearing tracking with signal time delay, a novel approach called ISE-IMM is proposed in this paper. The iterative state estimation (ISE) method is designed to eliminate the negative influence of time delay effect and an interacting multiple model (IMM) filter is embedded to estimate the state according to the measurements of the delayed signal. The nonlinear filter preferred in this paper is a particle filter (PF) with an improved resampling procedure. Performance of our proposed method is evaluated in Monte Carlo simulations. Results show the effectiveness and stability of ISE-IMM-PF in combating the negative effect of signal time delay.
    Article · Jan 2008
    • "Extra information can be prior information, for example a given velocity or a given heading. Another way is to consider jointly other measurements such as frequency measurements; this supposes that the source emits pure single tones and makes necessary a dedicated processing [6]. We can sometimes benefit from bearing measurements collected by another sensor, if the target is detected by both platforms and if the respective bearing tracks are properly associated [7]. "
    [Show abstract] [Hide abstract] ABSTRACT: This paper addresses the problem of bearings-only target motion analysis) of a maneuvering source, whose trajectory is composed by two legs at constant velocity. Under very large assumptions, the target trajectory is proved observable from a non-maneuvering platform. Two cases are considered: first, the time of the target maneuver (t<sub>M</sub>) is perfectly known. Secondly, t<sub>M</sub> is unknown. In both cases, a batch estimator is proposed and its performance is compared with the classic cramer-rao lower bound (CRLB). Monte-Carlo simulations reveal the efficiency of the estimator.
    Full-text · Conference Paper · Jan 2008 · Progress In Electromagnetics Research
  • [Show abstract] [Hide abstract] ABSTRACT: Estimating position and velocity of a moving source requires at least an ownship maneuver when performing bearing-only tracking (BOT). By concurrently processing bearing and Dopplerized radiated frequencies a unique target motion analysis (TMA) solution is available without any maneuver. A simple, fast, non-time-recursive estimator, working on several unknown measured spectral lines, is presented. The statistical efficiency of such a Doppler and bearing tracking (DBT) is proved by computer simulation. Simulation results show that DBT can yield proper estimates of source trajectory: range accuracy better than 10% within at most 10 min for a source at 20 km and nine sinusoids
    Conference Paper · Jun 1989
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