To solve these problems, this thesis presents a new concept of All Digital Demodulating.A research on digital FM-FM telemetry system subcarrier demodulator is done on the basis of this concept.

• 针对这些问题，本文提出了一个全数字化 的解调概念，并以此概念为基础，对数字式频分多路遥测系统副载波 解调器作了系统的研究。