Improved design of orthogonal discrete frequency-coding waveform based on modified genetic algorithm for MIMO-SAR

Design Discrete Frequency Coding Waveform Based OFDM for MIMO-SAR

“…5 is the cross-correlation curves of the DFCW_MLFM based OFDM sequences 1, 2 and 3 of the sequence set. Table V shows the comparison between DFCW_LFM,DFCW_FF [20] and DFCW_MLFM , column 1 shows source of information, column 2 shows average of autocorrelation PSLRs, column 3 shows average of cross correlation PSLRs, column 4 shows average of autocorrelation ISLRs, and column 5 shows average of cross correlation ISLRs. Table VI shows the comparison between our results and the results reported in the literatures [9], [19].…”

Discrete Frequency and Phase Coding Waveform for MIMO Radar

“…Replacing the constant frequency with linear frequency modulation in the DFCW is also extensive investigated [16][17][18]. However, the basis of the above mentioned orthogonal coding waveforms [11][12][13][14][15][16][17][18] depends on frequency diversity advantage, which can only provide limited orthogonality in frequency domain.…”

“…In 2004, Deng employed simulated annealing algorithm along with optimized the crosscorrelation of waveforms by means of phase modulation, obtaining a desirable pair of phase coding waveforms possessing the optimal auto-correlation sidelobe peak (ASP) and cross-correlation peak (CP) [9], and improvements are given in [10]. After that, discrete frequency coding waveform (DFCW) optimizing the frequency coding sequence of Costas waveforms, has been studied extensively [11][12][13][14][15]. Replacing the constant frequency with linear frequency modulation in the DFCW is also extensive investigated [16][17][18].…”