【摘要】 本文在讨论用二相编码信号构成的准连续波的数学模型和模糊函数的基础上,引入新的二元序列--MAC序列,并对其产生以及自相关特性进行了详细研究。通过对采用该序列编码的准连续波信号的周期单码重复时和多码重复的模糊函数进行仿真,其结果具有很好的图钉状,即有较高的距离和多普勒分辨率;并将MAC序列的相位编码准连续波应用在波形设计中,脉压仿真结果表明相比较m序列码,MAC序列更适用于目标检测。更多还原

【Abstract】 Based on the analysis of mathematical model and ambiguity function of binary phase- coded Quasi-continuous wave( quasi- CW),a new kind of binary sequence—MAC sequence is introduced,and its generation and autocorrelation characteristics are studied in detail. It has a good form of thumbtack by simulating the ambiguity function of periodical repetition with single- code and multi- code,which means that the phase- coded Quasi-CW based on MAC sequence possesses higher range and Doppler resolution. Finally,the phase- coded Quasi-CW based on MAC sequence is applied to waveform design and the simulation results indicate that the MAC sequence has an advantage over m- sequence code in the aspect of target detection.更多还原