短稳的特性表征及其σ_y{τ}与S_Φ{f}间的变换

Characterization of Short Term Stability and Its Transform between σ_y(τ) and S_Φ(f)

短稳是测控通信中一个较特殊和重要的问题,它对测速和测距精度、数传误码率都有影响。文中论述了短稳的时域σy(τ)和频域SΦ(f)的含义及它们之间的相互变换的3种方法:积分法、解析法和特征点对应法,并列举了工程计算实例,说明了它们在工程中的应用,具有一定实用意义。

Short term stability is an important and special parameter for TT&C and communication,which has impact on range rate measurement,ranging accuracy,and error bit rate in data transmission.Its meanings in time domain σy(τ) and frequency domain SΦ(f) are discussed respectively,and three transform methods among them are presented,including integration method,analysis method,and feature points corresponding method.Engineering calculation samples are provided to show their applications in practical engineering.