To enhance target-detection performance of multiple-input multiple-output (MIMO) radar in Doppler environments, a Doppler-resistant waveform design framework based on preferred Z-complementary pairs (PZCP) is proposed. First, the quasi-symmetric Golay complementary pairs (QS-GCP) are defined and systematically constructed. Two new classes of PZCP are then generated through cascade-interleaving. Building on Z-complementary pairs (ZCP), a highly flexible third construction is further devised, by which PZCP of previously unavailable lengths such as 12, 20, 22, 28, 36 and 52, are for the first time obtained, and the parameter space is thereby significantly enlarged. Finally, complete Doppler-tolerant pulse trains for MIMO transmission are constructed by combining these sequences with equal-sum-of-powers (ESP) sets. Simulation results show that the proposed PZCP outperform conventional ZCP and GCP in both PSLR and ISLR, offering new insights and resources for waveform design in Doppler-sensitive scenarios.
LEVANONN, MOZESONE. Radar signals[M]. New York, USA: Wiley, 2004:123-146.
[2]
丁鹭飞,耿富禄,陈建春.雷达原理[M].6版.北京:电子工业出版社,2020:11-22.
[3]
GOLAYM. Complementary series[J]. IRE Transactions on Information Theory, 1961,7(2):82-87.
[4]
PEZESHKIA, CALDERBANKA R, MORANW, et al. Doppler resilient golay complementary waveforms[J]. IEEE Transactions on Information Theory, 2008,54(9):4254-4266.
[5]
NGUYENH D, COXSONG E. Doppler tolerance, complementary code sets, and generalised Thue-Morse sequences[J]. IET Radar, Sonar & Navigation, 2016,10(9):1603-1610.
[6]
BORWEINP B, FERGUSONR A. A complete description of golay pairs for lengths up to 100[J]. Mathematics of Computation, 2004,73(246):967-985.
[7]
周正春.互补序列研究进展[J].广西师范大学学报(自然科学版),2023,41(1):1-16.
[8]
FANP Z, YUANW N, TUY F. Z-complementary binary sequences[J]. IEEE Signal Processing Letters, 2007,14(8):509-512.
[9]
WANGJ H, FANP Z, YANGY, et al. Doppler resilient Z-complementary waveforms from ESP sequences[C]//2017 Eighth International Workshop on Signal Design and Its Applications in Communications. Piscataway,USA: IEEE, 2017:19-23.
[10]
ZHOUZ C, LIUB, SHENB S, et al. Doppler-resilient waveform design in integrated MIMO radar-communication systems[J]. Science China Information Sciences, 2023,67(1):No.112301.
[11]
LIUT, CHENH R, LIY B. Doppler resilient MIMO radar waveform design from zero correlation zone complementary sequence pairs[J]. Digital Signal Processing, 2025,158:No.104912.
[12]
PRIYANSHUP, PAULS, MAJHIS. Construction of all even lengths type-II Z-complementary pair with a large zero-correlation zone[J]. Cryptography and Communications, 2024,16(6):1417-1427.
[13]
CHENZ H, LIANGJ L, SONGK M, et al. On designing good Doppler tolerance waveform with low PSL of ambiguity function[J]. Signal Processing, 2023,210:No.109075.
[14]
LIP S, LIM, LIUR, et al. MIMO-OFDM ISAC waveform design for range-Doppler sidelobe suppression[J]. IEEE Transactions on Wireless Communications, 2025,24(2):1001-1015.
[15]
GOLOMBS W, GONGG. Signal design for good correlation[M]. New York: Cambridge University Press, 2005:1-438.
[16]
SHENB S, YANGY, FANP Z. Preferred Z-complementary pairs and their application in Doppler resilient waveform design[J]. Cryptography and Communications, 2024,16(1):71-87.
[17]
YUT, DUX Y, LIL P, et al. Constructions of even-length Z-complementary pairs with large zero correlation zones[J]. IEEE Signal Processing Letters, 2021,28:828-831.