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Tuesday, July 9 • 10:30 - 13:00
APPLYING BINARY PHASE SHIFT KEYING PULSE TO DETECT LOW-SPEED TARGET IN CLUTTER-FILLED ENVIRONMENT

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Detecting low-speed targets such as underwater unmanned vehicles(UUVs) by using active sonar is becoming attractive. Recently, binary phase shift keying (BPSK) pulse is taken as active waveform because it has both high doppler and range resolution. However, its doppler sensitive property limit the application of BPSK heavily. In this paper, we focus on discussing the application area which is suitable for BPSK waveform. It is proved by simulation that shorter time duration of waveform could avoid time distortion of pulse and energy lose of matched filter. BPSK is more suitable for short range detection on high frequency sonar than low frequency sonar. The small doppler tolerance of BPSK could help to suppress clutters which arise from physical objects in the ocean (e.g. rocks, shipwreck, or fish). It is effective to detect low-speed target by BPSK in clutter-filled environment such as harbor and littoral area. Compared with linearly frequency modulation(LFM) waveform, the experiment results testify the benefit of applying BPSK to detect low-speed target in clutter-filled area on HFAS.


Tuesday July 9, 2019 10:30 - 13:00 EDT
St-Laurent 3, Board 02-B
  T12 Underwater & marit. noise, SS01 … underwater snd measur & monit

Attendees (4)