Band spread system enables you to easily tune in SW stations.
波段扩展系统，可让您较容易调谐SW电台。
This paper presents a new radio station data communication scheme, a DS-GMSK system based on in-band spread- spectrum technology.
提出了一种采用DS-GMSK体制、基于带内扩频技术的无线电台数字通信方案。
Based on the model, the BER Bit Error Ratio performance is analyzed for narrow-band modulation and wide-band spread -spectrum modulation of coherent PSK Phase Shift Key...
结果表明移动卫星信道中存在的多径和阴影现象使系统的误码性能恶化，而采用宽带扩频调制则可极大改善系统的性能。
A redshift can be measured when light from a galaxy is broken up and spread out into a band of colors called a spectrum.
当从星系发出的光被分解展开成光谱的时候就可以测出红移了。
Because of limited frequency band of channel, spread spectrum and MFSK modulations can not resolve that high speed transmission is in contradiction with limited frequency band.
当进行高速水下通信时，由于水下信道的频带有限，扩频和MFSK调制方式无法解决高速率信息传输和可利用信道频带窄的矛盾。
Computer simulations show that it is superior to the conventional approaches in most cases and thus is a good approach for narrow-band interference suppression in spread spectrum systems.
通过计算机仿真可以看出，在多数情况下它比传统方法的性能优越，这表明它是一种对于扩频系统中窄带干扰的抑制的好方法。
Therefore, spectrum spread systems lose efficiency when dealing with wide band interference.
因此，扩频系统在面对宽带非平稳干扰时，抑制效果十分有限。
This paper describes a new viewpoint: of evaluating the utilization rate of the spread spectrum system frequency band.
本文提出了评价扩频系统频带利用率的新观点。
Spread spectrum, frequency-hopped, which generates many codes over a wide frequency band.
它在很宽的频带上产生许多代码。
In the presence of narrow-band interference (NBI), the performance of direct spread-spectrum systems (DSSS) can be improved by using various interference rejection filters.
在存在窄带干扰时，扩频通信系统的性能可以通过使用各种不同的抗干扰滤波器来进一步提高。
When the millimeter wave band pulse propagates through rain medium, it changes the spread and compress, and it also delays.
毫米波脉冲通过雨介质时会发生展宽和压缩，脉冲延时。
The band width of the radio-frequency signal for the spread spectrum communication can be spreaded to several times or even thousands of times the band width of the information signal.
扩频通信的射频信号频带宽度，可扩展到信息信号频带宽度的数倍乃至数千倍。
A method based on phase correction is proposed to enhance the performance of suppressing narrow-band interference of base-band direct sequence spread spectrum (DSSS) receiver.
为提高基带直扩接收机的抗窄带干扰能力，提出了一种相位校正方法。
A method based on phase correction is proposed to enhance the performance of suppressing narrow-band interference of base-band direct sequence spread spectrum (DSSS) receiver.
为提高基带直扩接收机的抗窄带干扰能力，提出了一种相位校正方法。
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