Title :
Sidelobe reduction techniques for polyphase pulse compression codes
Author :
Kretschmer, Frank F. ; Welch, Laurence R.
Author_Institution :
Technology Service Corp., Silver Spring, MD, USA
Abstract :
The well known Lewis-Kretschmer P4 polyphase pulse compression codes are low sidelobe, Doppler tolerant codes based on sampled linear FM phases. This paper discusses and shows how the sidelobes can be substantially reduced by applying different weighting techniques and their tradeoffs. Also, a comparison is made with nonlinear chirp P(n,k) polyphase codes
Keywords :
Doppler radar; FM radar; codes; pulse compression; radar signal processing; radar theory; signal sampling; Doppler tolerant codes; FM phases; Lewis-Kretschmer codes; P4 polyphase codes; nonlinear chirp polyphase codes; polyphase pulse compression codes; sampled linear phases; sidelobe reduction techniques; weighting techniques; Autocorrelation; Bandwidth; Chirp; Doppler radar; Energy resolution; Filters; Pulse compression methods; Radar detection; Silver; Springs;
Conference_Titel :
Radar Conference, 2000. The Record of the IEEE 2000 International
Conference_Location :
Alexandria, VA
Print_ISBN :
0-7803-5776-0
DOI :
10.1109/RADAR.2000.851870
