Parameter estimation for reconnaissance signals combined with  pseudorandom binary phase code and LFM based on spectrogram
ZHU Jiandong, ZHAO Yongjun, SHEN Wei, PAN Wei
Journal of Systems Engineering and Electronics . 2012, (9): 1769 -1774 .  DOI: 10.3969/j.issn.1001-506X.2012.09.04