信号干扰比（又称信干比）是指在传输信道的规定点，按规定条件测得的有用信号功率对干扰信号和噪声的总功率之比，通常以dB表示。
射频信号干扰比 RF signal to interface ratio ; radio-frequency signal-to-interference ratio
音频信号干扰比 AF signal to interference ratio
阈信号干扰比 threshold signal-to-interference ratio ; TSI
视频信号干扰比 video-frequency signal-to-interference ratio
信号干扰噪声比 SINR
干扰信号比 [电子] jam-to-signal ; signal ; jam to signal ; [电子] Jam-to-signal ratio
内环的目标信号干扰比 Signal-to-Interference Ratio
信号与干扰加噪声比 SINR ; Signal to Interference plus Noise Ratio ; Signal-to Jamming and noise ratio
信号噪声干扰比 SNIR
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并用分离评价参数性能指标(PI)和信号干扰比(SIR)对分离效果进行了评价。
Performance Index (PI) and Signal Interference ratio (SIR) were used to value the results of separation.
基于信号干扰比（SIR）测量的归一化功率控制在无线蜂窝系统中有着广泛的应用。
Unitary power control based on Signal-to-Interference Ratio (SIR) measurement has been widely used in cellular radio system.
在蜂窝无线通信系统设计中，基于信号干扰比(SIR)测量的功率控制方法得到广泛的应用。
In the design of cellular radio systems, power control methods based on signal-to-interference ratio (SIR) measurement have been used widely.
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