縮寫信碼 的英文怎麼說
中文拼音 [suōxiěxìnmǎ]
縮寫信碼
英文
abbreviated signal code-
Abbreviated signal code
縮寫信碼System scheme of speech coding plus spread spectrum communication was presented based on a full analysis of noise characteristic, attenuation characteristic and impedance characteristic of low - voltage power line. spread spectrum carrier ( abbreviated as ssc ) technology is adopted to overcome problems existing in signal transmission over power line. high quality, low rate mbe compression algorithm was used to complete speech encoding and decoding
在對低壓電力線路的噪聲特性、衰減特性和阻抗特性三個方面充分分析的基礎上，本文提出一種語音編碼+擴頻傳輸的系統總體方案，採用擴頻載波（ spreadspectrumcarrier ，縮寫為ssc ）技術克服電力線傳輸信號存在的問題，採用語音合成質量高並具有較低碼率的mbe壓縮演算法完成語音信號的編解碼。The thesis then introduces top - to - bottom schemes, which discuss the functional design of hdtv test pattern signal generator according to the tasks and platform of the system, and develops the function of subsystems. the thesis analyses the theory and mathematic model of hdtv test signal, and studies the signal generating scheme called single - fpga and multi - prom, and describes in detail its key modules such as configuration connecting, prom routing, control and switch timing design and so on. the single - fpga and multi - prom scheme increases the number of prom to reduce the degree of fpga demanded, thus
論文分析了hdtv測試信號的原理及數理模型，提出了一種以單晶元多配置為特色的信號生成方案，並對該方案的配置連接、晶元選路、控制切換時序設計等關鍵模塊進行了詳細敘述，該方案以增加配置晶元數量來降低對主晶元要求，不但降低了產品成本，還使各測試信號的代碼編寫和產生相對獨立，有利於合理使用晶元資源，實現多種復雜的hdtv測試信號，縮短開發周期。
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