论文部分内容阅读
同步抑制这种加扰方式,人们似乎既爱它又恨它。一方面很多文章都论及它易被破解,安全性不高;另一方面,因为它易于实现且成本较低,所以国内60％以上的厂家都非常偏爱它,都不约而同的采用了同步抑制这种加扰方式。于是,排山倒海般的在很短一段时间内,国内涌出了几十家采用同步抑制的加解扰厂家,有的在视频上实现加扰,有的在射频上实现加扰,有的在中频上实现加扰。在设想的巨大的市场诱惑下,许多厂家在没有完善自己产品的条件下就盲目的强占市场,一时间似乎踌躇满志,“最大”、“第一”之声雀起,不绝于耳。
Synchronous suppression of this scrambling method, people seem to love it and hate it. On the one hand, many articles on it are easy to crack, security is not high; the other hand, because it is easy to implement and lower cost, so more than 60% of domestic manufacturers are very much in favor of it, are invariably used synchronous suppression Scramble method. As a result, overwhelming in a very short period of time, the domestic pouring dozens of anti-jamming using synchronous suppression manufacturers, and some in the video to achieve scramble, and some in the radio to achieve scramble, and some in the intermediate frequency On the realization of scrambling. Temptation in the conceived huge market, many manufacturers blindly seize the market without improving their products under the conditions of a time seems smug, “maximum”, “first” voice of the birds, endless.