塔康信号时差估计方法研究  

Algorithm Study of Time Difference for TACAN Signal Source

作　　者：邢朦 茅玉龙[2] 胡进[2] 

机构地区：[1]南京信息工程大学,江苏南京210044 [2]南京船舶雷达研究所,江苏南京210003

出　　处：《现代防御技术》2013年第6期134-138,157,共6页Modern Defence Technology

摘　　要：利用广义相关法对塔康信号进行时差估计时,由于不同信噪比下采用单一信号形式对时差误差或计算量影响较大,提出了根据信噪比不同选择合适的信号形式进行时差估计方法。针对选取了3种典型的塔康脉冲群形式,在不同信噪比下进行仿真得出了各信噪比下应选取的塔康脉冲群形式,既考虑了时差测量的误差也均衡了计算量,对实际工程应用有一定的指导意义。Aiming at the application of the generalized cross correlation （GCC） time difference esti- mation algorithm for the tactical air navigation system （TACAN） signal, the single size chosen to estimate the time difference will lead to biggish error or larger amount of calculation. The method of different sizes of TACAN signal chosen in different SNR is proposed. First, three typical sizes of TACAN signal are cho- sen to estimate time difference in different SNR, and then the results are compared. Finally, the proper size of TACAN with some SNR is found. This idea has advantages on cutting down the error and low cost and is of use to engineering realization

关 键 词：塔康信号 时差估计 广义相关法 

分 类 号：V249.3[航空宇航科学与技术—飞行器设计] TN911.7[电子电信—通信与信息系统]