Study on the Characteristics of LFM Signals, BC Signals and Their Mixed Modulation Signals
Zheng Dou, Weidong Song, Wenxu Zhang · International Journal of Communications Network and System Sciences · 2017
This paper proposes a linear frequency modulation (LFM signal) and biphase coding (BC signal) mixed modulation signal called LFM-BC signal. LFM-BC signal has both LFM signal and BC signal two kinds of traditional signal advantages but makes up for their shortcomings. In this paper, LFM-BC signal, LFM and BC signals are studied and compared from the time characteristic and frequency characteristic of the signal, fuzzy function, pulse compression and Doppler characteristics and low probability of interception (LPI) characteristics.