DRFM相位校正技术研究

Research on DRFM's Phase Correcting Technique

DRFM复制信号的相位不连续会破坏输出信号的相干性,影响干扰效果。将信号取样的起始和终止相位之差记录下来,并在信号复制时进行相位补偿的新技术,可以消除复制信号首尾相位差,并简化电路。3比特相位DRFM中相位校正的精度优于π/4。

If the output signal of the DRFM is not continuous, the discontinuous wave will destroy the coherence of the jamming signals. That corrupts the effect of jamming. The difference of the phase between beginning and ending of sampled signal is correctly logged, and when the signal outputs, the difference of phase is automatically compensated. This new technique will minimize the phase discontinuous, and simplify the circuits. In the 3bit phase quantization DRFM, the precision of the phase correction beyond π/4.