说明了采用直接数字频率合成技术(DDS)设计与实现频分多路遥测系统中,遥测地面站副载频校准信号源的方法。对其工作原理、设计与实现方法、参数计算、试验与测试结果进行较详细的论述,并说明其优缺点和进一步的研究工作。 Describes the method of designing and implementing the frequency division multiplexing telemetry system using direct digital frequency synthesis (DDS) to calibrate the signal source of the subcarrier frequency of the telemetry ground station. The working principle, design and implementation method, parameter calculation, test and test results are discussed in detail, and their advantages and disadvantages and further research work are illustrated.