It would also need good shielding and special electronics to filter the DSSS signal from the radio-noise created by the Earth, the sun and the rest of the galaxy.
同时还需要良好的外层保护和特殊电子器件，从地球、太阳及其太空中传来的无线电“杂音”中过滤出dsss信号。
In this paper, the optimization of the transmitted signal energy for a data packet unit in UWB radio communications in additive white Gaussian noise(AWGN) channel is firstly investigated.
首次研究白高斯噪声（AWGN）信道下超宽带无线电通信系统中单个数据包单元发射信号能量的优化。
Noise, as a random interference signal which is not expect, be existence of a broad variety of radio systems.
噪声，作为一种随机的不期望干扰信号，广泛的存在于各种无线电系统中。
That's one way that an extraterrestrial civilization can send a signal that stands up above the radio background noise.
这是外星文明可以突出于宇宙的无线电背景噪声发送信号的一种方式。
Your radio transmission, furthermore, would probably be a narrow-band signal, to distinguish it from other transmissions in neighboring bands as well as naturally occurring noise.
此外，你的无线电信号可能会是一个窄带信号，以区别于邻近频带中其他的自然杂波。
Experimental result shows that compared to the traditional EZW, the improved algorithm can increase the peak signal to noise radio (PSNR for short) of image compression.
实验结果表明，与传统的EZW算法相比，该改进算法明显提高了图像压缩的峰值信噪比。
DCMA combines the conventional CMA and SR-CMA, and the switch process between CMA and SR-CMA is realized by decision circle ring which boundary is decided by the signal-to-noise radio.
该算法将常规CMA算法和SR-CMA算法相结合，通过判决圆环完成两种算法之间的切换，根据信噪比确定判决圆环的边界。
DCMA combines the conventional CMA and SR-CMA, and the switch process between CMA and SR-CMA is realized by decision circle ring which boundary is decided by the signal-to-noise radio.
该算法将常规CMA算法和SR-CMA算法相结合，通过判决圆环完成两种算法之间的切换，根据信噪比确定判决圆环的边界。
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