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Filter design to address range sidelobe modulation in transmit-encoded radar-embedded communications | IEEE Conference Publication | IEEE Xplore

Filter design to address range sidelobe modulation in transmit-encoded radar-embedded communications


Abstract:

In a companion paper a continuous phase modulation (CPM) based approach has been introduced to embed information sequences into physical radar emissions, yielding spectra...Show More

Abstract:

In a companion paper a continuous phase modulation (CPM) based approach has been introduced to embed information sequences into physical radar emissions, yielding spectrally-efficient constant-envelope waveforms. In addition, the CPM-based approach enables direct control of the degree of range sidelobe modulation (RSM), which occurs due to the changing waveform structure during the coherent processing interval (CPI), by trading off bit error rate (BER) and/or data throughput. When not properly addressed, RSM translates to residual clutter in the range-Doppler response, and hence degraded target visibility. Here receive filter design to mitigate RSM is addressed. The objective for such filters is to produce pulse compression responses that are similar despite the pulse-to-pulse change in waveforms. Three different filter designs are proposed and compared by simulation, where it is found that coherence can be enhanced (and thus RSM reduced) at the expense of higher range sidelobes.
Date of Conference: 08-12 May 2017
Date Added to IEEE Xplore: 08 June 2017
ISBN Information:
Electronic ISSN: 2375-5318
Conference Location: Seattle, WA, USA

References

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