间断照射码元宽度对导弹截获低速目标能力的影响

Effect of Code Width for Discontinuous Radiation on Missile Target Acquire with Low Speed

对间断照射码元宽度对导弹截获低速目标能力的影响进行了研究。分析了间断照射副载频信号形式和频谱特性,讨论了码元宽度对近载频相位噪声品质的影响。研究发现:码元宽度越窄,近载频一、二次交调谐波对导弹截获低速目标的能力影响就越大。设计间断照射制导系统时应充分考虑间断照射码元宽度的影响。

The influence of code width for discontinuous radiation on missile target acquire with low speed was studied in this paper.The structure and frequency properties of sub-carrier discontinuous radiation signal were analyzed.The effect of the code width on the performance of the near carrier frequency phase noise was discussed.The results showed that the smaller of the code width,the bigger of the effect of the first and second order cross harmonic wave on the performance of missile detection with low speed.The effect of the code width with discontinuous radiation should be under consideration in the design of discontinuous radiation missile guidance system.