m序列二相编码雷达灵巧噪声干扰研究

针对前沿复制干扰能量利用效率低的问题，提出了利用前沿波形，通过预测，超前获取雷达信号完整波形，进而实施灵巧噪声干扰的思路。对于采用由n级移位寄存器产生的m序列的二相编码雷达，给出了利用获得的前2n个码元，通过解n元线性方程组，预测获得完整m序列的方法。进一步，针对该线性方程组的生成特点，提出了一种快速算法。利用该快速算法，可以将预测的计算工作量平均分配到从获得m序列的第n＋1个码元到获得第2n个码元的各个节拍中去，使得一旦获得m序列的第2n个码元，就能够立刻得到m序列的所有反馈系数，获取雷达的当前发射信号的完整波形，并以最短的延迟实施针对性的灵巧噪声干扰。

Research on Smart Noise Jamming for m Sequence Binary Phase Code Radar

Point to the problem of front copy jamming energy efficiency being low, the idea is present that utilizing the front waveform, through predicting, get leading whole radar signal waveform, and then execute smart noise jamming. For binary phase code radar using m sequence generated by n stage shift register, the method is given that utilizing the acquired front 2n code elements, through solving a n element linear equations set, get whole m sequence. Further, point to the generating features of the linear equations set, a fast algorithm is put forward. By meanings of the fast algorithm, the workload for solving the linear equations set can be distributed averagely to each beat from getting the n+1th code element to getting the 2nth code element, and as soon as the 2nth code element is acquired, the all feedback coefficients and the whole waveform of the radar signal will be get, and then the aiming smart noise jamming can be executed with the shortest delay.