G.711 is an ITU-T standard for audio companding. It is primarily used in telephony.
標(biāo)簽： companding primarily telephony standard
上傳時(shí)間： 2016-06-15
上傳用戶：jackgao
QAM，很辛苦 ，很辛苦的，還再加上很辛苦
標(biāo)簽： QAM
上傳時(shí)間： 2016-06-16
上傳用戶：kristycreasy
完成一個(gè)利用矩形信號星座圖的M=16的QAM通信系統(tǒng)的MONTECARLO仿真，
標(biāo)簽： MONTECARLO QAM 16 矩形
上傳時(shí)間： 2014-08-03
上傳用戶：liansi
Abstract-The effect of the companding process on QAM signals has been under investigation for the past several years. The compander, included in the PCM telephone network to improve voice performance, has an unusual affect on digital QAM data signals which are transmitted over the same channel. The quantization noise, generated by the companding process which is multiplicative (and asymmetric), degrades the detectability performance of the outermost points of the QAM constellation more than that of the inner points. The combined effect of the companding noise and the inherent white gaussian noise of the system, leads us to a re-examination of signal constellation design. In this paper we investigate the detectability performance of a number of candidates for signal constellations including, a typical rectangular QAM constellation, the same constellation with the addition of a smear-desmear operation, and two new improved QAM constellation designs with two-dimensional warpi
標(biāo)簽： investigation Abstract-The companding the
上傳時(shí)間： 2013-12-20
上傳用戶：英雄
本次試驗(yàn)是討論單源點(diǎn)的最短路徑問題:給帶權(quán)有向圖和源點(diǎn)V到G中其余各頂點(diǎn)的最短路徑。
標(biāo)簽： 最短路徑
上傳時(shí)間： 2013-12-24
上傳用戶：66666
芯動G系列OEM中文說明書 GPS 接收機(jī)OEM 板中可以將衛(wèi)星軌道參數(shù)、上次定位位置、時(shí)間和日期等數(shù)據(jù)保存在 靜態(tài)存儲器，接收機(jī)內(nèi)部有備用電池來為存儲器供電。
上傳時(shí)間： 2016-06-21
上傳用戶：李彥東
這是一個(gè)用matlab來實(shí)現(xiàn)的QAM,QPSK程序，可顯示星象圖，調(diào)制解調(diào)的信號波形和頻譜波形
上傳時(shí)間： 2016-06-25
上傳用戶：gououo
SIMULINK實(shí)現(xiàn)QAM,來自韓國一本教材。
上傳時(shí)間： 2016-06-26
上傳用戶：凌云御清風(fēng)
S變換 C語言程序 由R.G.Stockwell 編寫 包含了正反變換 以及希爾伯特變換正反變換
上傳時(shí)間： 2014-01-04
上傳用戶：黃華強(qiáng)
各種QAM的解調(diào)程序
上傳時(shí)間： 2013-12-30
上傳用戶：亞亞娟娟123
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