...信；多普勒频偏；快速傅里叶变换；非相干检测 [gap=1115]Keywords ：mobile satellite communication; Doppler frequency offset; FFT; non-coherent detection ...
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... Doppler effect 多普勒效应 Doppler frequency offset 多普勒频移 Doppler sonar log 多普勒声纳计程仪 ...
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⑶ Doppler compensation techniques: The large Doppler frequency offset can case the performance degraded in PN and carrier synchronizing.
⑶ 多普勒频移补偿：大的多普勒频移会引起载波同步及伪码捕获性能的下降。
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Doppler frequency offset is always the passive factor that cant be neglected in satellite communication.
多普勒频偏一直是卫星通信中不可忽视的消极因素。
But if the Doppler frequency offset exceed the capture range of PLL, the carrier synchronization will fail.
但是，一旦多普勒频移超出了锁相环的频率捕捉范围，就无法完成载频同步。
In satellite mobile communications, Doppler frequency offset is a negative factor that couldn't be neglected.
在卫星移动通信中，多普勒频偏是一个不能忽视的消极因素。
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