通信学报 ›› 2020, Vol. 41 ›› Issue (3): 182-189.doi: 10.11959/j.issn.1000-436x.2020050

• 学术通信 • 上一篇    下一篇

16QAM-LFM雷达通信一体化信号设计

曾浩,吉利霞,李凤,李创   

  1. 重庆大学微电子与通信工程学院,重庆 400044
  • 修回日期:2020-02-20 出版日期:2020-03-25 发布日期:2020-03-31
  • 作者简介:曾浩(1977- ),男,四川泸州人,博士,重庆大学教授,主要研究方向为阵列信号处理、无线通信技术|吉利霞(1993- ),女,河北邢台人,重庆大学硕士生,主要研究方向为无线通信技术|李凤(1995- ),女,四川蓬溪人,重庆大学硕士生,主要研究方向为无线通信技术|李创(1995- ),男,土家族,湖北利川人,重庆大学硕士生,主要研究方向为阵列信号处理
  • 基金资助:
    十三五国防预研基金资助项目(305010905)

16QAM-LFM waveform design for integrated radar and communication

Hao ZENG,Lixia JI,Feng LI,Chuang LI   

  1. College of Microelectronics and Communication Engineering,Chongqing University,Chongqing 400044,China
  • Revised:2020-02-20 Online:2020-03-25 Published:2020-03-31
  • Supported by:
    Thirteenth Five-Year National Defense Research Foundation(305010905)

摘要:

设计了一种16QAM信号与LFM脉冲相结合的高阶雷达通信一体化波形,把LFM信号作为16QAM信号的载波,在不影响雷达基本功能的前提下实现高速率的通信。对16QAM-LFM这一新型一体化波形的性能分析和计算机仿真表明,在通信性能方面,该波形与 16QAM 信号的通信误码率特性相同,具有比 BPSK-LFM、MSK-LFM等低阶调制的一体化信号更高的频带利用率,比OFDM-LFM等高效率一体化信号更低的复杂度;在雷达性能方面,该波形因为其雷达模糊函数接近图钉型,具有比 LFM 信号更高的距离和速度分辨力,对低速目标的检测概率则相同。

关键词: 雷达通信一体化, 误码率, 模糊函数, 检测概率

Abstract:

A kind of high-order integrated radar communication waveform pulse was proposed,which combined 16QAM and LFM together.The new waveform took LFM signal as the carrier of the 16QAM,so that high communication capacity was achieved and the radar performance was not impacted.The analysis and computer simulation for the 16QAM-LFM waveform show that the new waveform has the same bit error rate as the classic 16QAM signal and larger spectrum efficiency compared with the integrated waveforms such as BPSK-LFM and MSK-LFM.Furthermore,the computational complexity of 16QAM-LFM is less than the existing OFDM-LFM waveform.On the other hand,16QAM-LFM has higher distance resolution and speed resolution than the traditional LFM pulse signal since its ambiguity function looks like a thumb tack.And the detection probability of radar is similar as traditional LFM pulse signal for the slowly moving object.

Key words: integrated radar and communication, symbol error rate, ambiguity function, detection probability

中图分类号: 

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