Double loop high speed vacuum suction system, spread to the surrounding air by the central.
双回路高速真空吸气系统，由中央向四周扩散吸气。
When the system close -loop controlling is realized for lower frequency perturbation, the approximate diffraction limited line spread function can again be achieved on the image plane.
对于低频扰动，当系统实现闭环控制后，像面上线扩散函数已接近衍射极限。
This paper discusses the despread of low signal to noise ratio of the direct sequence (DS) spread spectrum signals using intermediate-frequency recirculation summation loop (IFRSL).
本文讨论了用中频积累法实现低信噪比直接序列扩频信号的解扩。
The design of code tracking loop is a key sector of the realization of noncoherent spectrum spread receiver.
伪码跟踪环的设计是实现非相干扩频接收机的关键环节。
The design of code tracking loop is a key sector of the realization of noncoherent spectrum spread receiver.
伪码跟踪环的设计是实现非相干扩频接收机的关键环节。
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