Title :
Range sidelobe reduction for the quadriphase codes
Author :
Blinchikoff, Herman J.
Author_Institution :
Westinghouse Electr. Corp., Baltimore, MD, USA
fDate :
4/1/1996 12:00:00 AM
Abstract :
Filters that reduce the sidelobes of the quadriphase-coded waveform are realized by applying the biphase-to-quadriphase transformation to the filter designs that reduce the sidelobes of the prototype biphase code. The mismatch loss is invariant under this transformation, but the resulting peak-to-sidelobe ratio (PSR) can decrease 1.5 dB maximum. An example illustrates the procedure for a compressor composed of a sidelobe reducing filter cascaded with the matched filter and a compressor realized as one mismatched filter.
Keywords :
cascade networks; codes; interference suppression; matched filters; network synthesis; pulse compression; radar clutter; biphase-to-quadriphase transformation; cascaded network; compressor; filter design; matched filter; mismatch loss; mismatched filter; peak-to-sidelobe ratio; prototype biphase code; quadriphase codes; quadriphase-coded waveform; range sidelobe reduction; sidelobe reducing filter; Autocorrelation; Decoding; Hardware; Linear programming; Matched filters; Nonlinear filters; Prototypes; Pulse compression methods; Radar signal processing; Signal resolution;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
