Based on the theory of chaotic synchronization, a chaotic transmitter and receiver circuit with low noise was proposed, and the principles of synchronization and secure communication were expounded.

基于混沌同步理论，设计出低噪声的混沌发射机和接收机电路，阐述了实现同步和保密通信的原理。

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The transmitter beam is Gaussian for real satellite-ground laser communication system. The pointing jitter and atmospheric scintillation are the main noise sources for satellite-ground laser link.

实际星地光通信系统的发射光束为高斯型的情况下，跟瞄误差和大气闪烁是星地激光链路中的主要信道噪声源。

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Using the characteristics of phased modulated signal , higher output Signal to Interference plus Noise Ratio is obtained for a fixed transmitter by transmitting more energy.

该方法充分发挥了雷达发射机的发射能力，即对于固定的发射机来说，以发射更大的能量来得到更大的输出信干噪比。

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The breakthrough came when researchers found that radios could be tweaked to filter out the signal from its own transmitter, something that already happens within noise-canceling headphones.

ENGADGET: 'Stanford gurus enable two-way radio communications. Over.'