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Orthogonal discrete frequency coding waveform design based on chaos 被引量:1
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作者 Yuxing Peng Jin Yang +1 位作者 Zhaokun Qiu Xiang Li 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2013年第4期617-624,共8页
Orthogonal waveform design is quite an important issue for waveform diversity systems. A chaos based method for the orthogonal discrete frequency coding waveform (DFCW) design is proposed to increase the insufficien... Orthogonal waveform design is quite an important issue for waveform diversity systems. A chaos based method for the orthogonal discrete frequency coding waveform (DFCW) design is proposed to increase the insufficient orthogonal waveform number and their finite coding length. Premises for chaos choosing and the frequency quantification method are discussed to obtain the best correlation properties. Simulation results show the validity of the theoretic analysis. 展开更多
关键词 orthogonal waveform design waveform diversity CHAOS chaotic radar.
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Evaluations of Novel Waveform Coding Signals Based on Finite Projective Plane
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作者 Chien-Hsing Liao Tai-Kuo Woo +1 位作者 Chi-Chung Chen Ing-Jiunn Su 《Journal of Electronic Science and Technology》 CAS CSCD 2016年第1期54-59,共6页
The most popular and representative classic waveform codes are referred to as orthogonal,bi-orthogonal,simplex,and etc,but the choice of waveform codes is essentially identical in error performance and cross correlati... The most popular and representative classic waveform codes are referred to as orthogonal,bi-orthogonal,simplex,and etc,but the choice of waveform codes is essentially identical in error performance and cross correlation characteristic.Though bi-orthogonal coding requires half the bandwidth of the others,such coding scheme is attractive only when large bandwidth is available.In this paper,a novel finite projective plane(FPP) based waveform coding scheme is proposed,which is with similar error performance and cross correlation.Nevertheless,the bandwidth requirement will grow in a quadratic way,but not in an exponential way with the values of message bit numbers(k).The proposed scheme takes obvious advantages over the bi-orthogonal scheme when k ≥ 6. 展开更多
关键词 Finite projective plane orthogonal coding simplex coding waveform coding
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