Recently, dual-function radar-communications (DFRC) has been proposed as means to mitigate the spectrum congestion problem. Existing amplitude-shift keying (ASK) methods for information embedding do not take full advantage of the highest permissable sidelobe level. In this paper, a new ASK-based signaling strategy for enhancing the signal-to-noise ratio (SNR) at the communication receiver is proposed. The proposed method employs one reference waveform and simultaneously transmits a number of orthogonal waveforms equals to the number of l's in the binary sequence being embedded. 3 dB SNR gain is achieved using the proposed method as compared to existing sidelobe ASK methods. The effectiveness of the proposed information embedding strategy is verified using simulations examples.
展开▼
机译：最近，已经提出了双功能雷达 - 通信（DFRC）作为减轻频谱拥塞问题的手段。用于信息嵌入的现有幅度移位键控（询问）方法不会充分利用最高允许的Sidelobe级别。在本文中，提出了一种用于增强通信接收器处的信噪比（SNR）的新的询问信令策略。该方法采用一个参考波形，并同时发送多个正交波形等于被嵌入的二进制序列中的L's的数量。与现有的侧链询问方法相比，使用所提出的方法实现3 dB SNR增益。使用模拟示例验证了所提出的信息嵌入策略的有效性。
展开▼
