Detection and Estimation of Multi-Pulse LFMCW Radar Signals
DEPARTMENT OF THE ARMY WASHINGTON DC
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The Wigner-Ville Hough transform WVHT has been applied to detect and estimate the parameters of linear frequency-modulated continuous-wave LFMCW low probability of intercept LPI radar waveforms. The WVHT, which is optimal for a single linear frequency modulated LFM signal becomes sub-optimal when applied to LFMCW signals since the observed waveform is composed of concatenated LFM pulses. We formulate the detection and estimation problem to take into account the multiple pulses that are available in an observation interval at the intercept receiver. The new algorithm, called the periodic WVHT PWVHT, is shown to significantly outperform the WVHT for LFMCW signals.
- Active and Passive Radar Detection and Equipment
- Radiofrequency Wave Propagation
- Radio Communications