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14 October 1998 Use of wideband waveforms for reducing dynamic range requirements
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Traditional medium and high PRF Pulse Doppler waveforms suffer from range ambiguities caused by the relatively high PRF. These ambiguities also translate into higher dynamic range requirements which result from having clutter from many Pulse Repetition Intervals (PRI) summed at RF. In order to adequately process out the clutter, it is imperative that the receiver possess enough dynamic range to allow clutter vectors from all range intervals to sum vectorally without any distortion. In addition, it is imperative to insure that any significant clutter is represented in every PRI processed, which usually translates into adding fill pulses to the dwell or processing less pulses in the coherent processor. Wideband step frequency waveforms, traditionally used to obtain high range resolution, have some interesting properties that mitigate some of these problems normally associated with Pulse Doppler waveforms. This paper discusses the use of a wideband stepped frequency waveform for reducing dynamic range, providing some selective range filtering, and reducing the processing speed requirements imposed on the A/D converter and subsequent processing.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Howard Myers, Walker Butler, and Steven M. Ware "Use of wideband waveforms for reducing dynamic range requirements", Proc. SPIE 3462, Radar Processing, Technology, and Applications III, (14 October 1998);


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