Design of unimodular sequences using generalized receivers

S. Unnikrishna Pillai, Ke Yong Li, Richeng Zheng, Braham Himed

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper reviews recent advances in designing unimodular sequences with good auto/cross correlation properties along with a new approach that emphasizes on independent receiver design. The general problem is to design single or multiple sequences with constant modulus in the timedomain such that their respective matched filter outputs ideally resemble delta functions and the cross-matched filter outputs are zeros. In this context CAN (cyclic-algorithm new) and WeCAN (Weighted CAN) have been proposed for designing such sequences with good auto-cross correlation properties. In this paper, the equivalence of the CAN algorithms and the classic Gerchberg-Saxton (GS) algorithm involving the sequential magnitude substitution operations in the time and frequency domain is demonstrated. The design of unimodular sequences is further generalized here by considering the receiver design to be more general than the respective matched input sequences. The receiver design is carried out by taking care of the desired output requirements and the freedom present at the input can be used to further minimize the output side-lobe level.

Original languageEnglish (US)
Title of host publication2010 IEEE Radar Conference
Subtitle of host publicationGlobal Innovation in Radar, RADAR 2010 - Proceedings
Number of pages6
StatePublished - 2010
EventIEEE International Radar Conference 2010, RADAR 2010 - Washington DC, United States
Duration: May 10 2010May 14 2010

Publication series

NameIEEE National Radar Conference - Proceedings
ISSN (Print)1097-5659


OtherIEEE International Radar Conference 2010, RADAR 2010
Country/TerritoryUnited States
CityWashington DC

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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