摘要
Link16数据链信号采用了一种混合扩频通信方式,具有较强的反侦察和抗干扰性能。通过分析该通信信号结构和射频调制技术,提出了信号的载频、码速率和扩频序列等关键参数的估计方法,分别设计了用于估计Link16数据链信号载频、码速率和对信号扩频序列估计的误比特率测试的仿真实验。仿真结果表明,该参数计算法可以为后续的信号检测时的增加样本数量提供理论基础。
Link16 signal uses hybrid spread spectrum to provide good anti-reconnaissance and anti-jamming capability.Based on analysis of Link16 signal structure and RF modulation technology,a method is proposed to estimate the key parameters such as carrier frequency,code rate and spread spectrum sequence.Simulations are designed to estimate the carrier frequency and code rate of Link16 and to test BER of spread spectrum sequence estimation.Experiment results show that this method can provide rationale for adding samples in subsequent signal tests.
出处
《无线电工程》
2012年第11期20-22,54,共4页
Radio Engineering
