Radar-Communication Integration Based on MSK-LFM Spread Spectrum Signal

Abstract

At present, with the progress and innovation of technology, the radar communication dual function wave has become a hot research at home and abroad. Excellent integrated waveform can make full use resources of combat platform, reduce the size of equipment, and realize the actual functionality of the reality of the battle-field without affecting the radar communication function. The MSK-LFM dual-function wave is a typical representative; it is based on LFM, through the MSK modulation to achieve the integration function. This paper proposes a scheme of combining the spread spectrum technology with the MSK-LFM waveform based on the previous literature. The simulation results show that the waveform envelope is more stable and the energy is more concentrated. With the introduction of spread-spectrum technology, the new waveform ambiguity function graph is much closer to the thumbtack than the traditional MSK-LFM waveform.

RadChat: Spectrum Sharing for Automotive Radar Interference Mitigation

“…A monopulse radar with frequency-shift-keying was used in another study to incorporate communication data in a time-division-multiplexed (TDM) manner in [26]. A similar study used minimum shift keyed linear frequency modulated spread spectrum signals (MSK-LFM/SS) for RadCom [21]. Orthogonal frequency division multiplexing (OFDM) has been the most extensively investigated option for RadCom [13], [22], [27]- [30] due to its high degree of flexibility and high performance under different propagation conditions [31]- [34].…”

Performance Evaluation of a Tactical Data-Link System Based on MSK and 16QAM

“…It is divided into two types: phase continuous and phase discontinuous. If the phase of 2FSK is continuous and the interval between the two carrier frequencies is 1 / 2 symbol rate, the phase continuous 2FSK is called minimum frequency shift keying (MSK) [31]- [33]. MSK is an orthogonal signals with minimum modulation index (h = 0.5), which has a higher bit rate than FSK.…”

Signal Processing and Recognition Technology and Simulation of Radar Communication Integrated System

“…With the increasing performance of radar systems and communication systems, the application range of the two continues to widen, and the gap between radar and communication systems has begun to gradually merge [1]. The working frequency band of radar has covered the range from HF band to EHF band.…”