TY - GEN
T1 - A new Doppler-tolerant polyphase pulse compression codes based on hyperbolic frequency modulation
AU - Yang, Jie
AU - Sarkar, Tapan K.
PY - 2007
Y1 - 2007
N2 - The conventional polyphase pulse compression codes including Frank code, P1, P2, P3 and P4 code suffer severe signal loss in performance under Doppler environment. This paper proposed a new polyphase pulse compression codes which are conceptually derived from the step approximation of the phase curve of the hyperbolic frequency modulated chirp signal. Comparing with the above conventional codes and the sidelobe-optimized polyphase P(n,k) code, the peak value of this new polyphase codes degrades much slower and the range solution as well as maximum sidelobe level are almost constant when Doppler frequency increases. The main disadvantage of this polyphase code is the relatively high sidelobe level without Doppler effect, which can be addressed by applying the proper window function. The desired Doppler-tolerant property of this new polyphase codes is very attractive for radars employing digital signal processing.
AB - The conventional polyphase pulse compression codes including Frank code, P1, P2, P3 and P4 code suffer severe signal loss in performance under Doppler environment. This paper proposed a new polyphase pulse compression codes which are conceptually derived from the step approximation of the phase curve of the hyperbolic frequency modulated chirp signal. Comparing with the above conventional codes and the sidelobe-optimized polyphase P(n,k) code, the peak value of this new polyphase codes degrades much slower and the range solution as well as maximum sidelobe level are almost constant when Doppler frequency increases. The main disadvantage of this polyphase code is the relatively high sidelobe level without Doppler effect, which can be addressed by applying the proper window function. The desired Doppler-tolerant property of this new polyphase codes is very attractive for radars employing digital signal processing.
KW - Polyphase codes
KW - Pulse compression and Doppler-tolerant
UR - http://www.scopus.com/inward/record.url?scp=34548828837&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34548828837&partnerID=8YFLogxK
U2 - 10.1109/RADAR.2007.374225
DO - 10.1109/RADAR.2007.374225
M3 - Conference contribution
AN - SCOPUS:34548828837
SN - 1424402840
SN - 9781424402847
T3 - IEEE National Radar Conference - Proceedings
SP - 265
EP - 270
BT - IEEE 2007 Radar Conference
T2 - IEEE 2007 Radar Conference
Y2 - 17 April 2007 through 20 April 2007
ER -