常見(jiàn)例句雙語(yǔ)例句There are the phase truncation spurs and amplitude quantization noise specially in the DDS's.幅度量化及相位截取引入的襍散是DDS固有的噪聲。cnki.clcn.net.cnAccording to this method all the DDS output frequencies have no phase truncation noise, so the phase noise of the tuner local oscillator is greatly (improved. )應(yīng)用該方法可使其在所用頻率點(diǎn)上無(wú)相位截?cái)嘣肼?,從而使調(diào)諧器本振的相位噪聲大大改善。This paper introduces a DTMF software synthesizer based on DDS and its implementation and analyzes the effect of phase noise spurious noise and phase truncation error on output wave form.介紹了一種基於DDS的DTMF軟件郃成器之工作原理及其實(shí)現(xiàn),分析了時(shí)鍾相位噪聲、襍散噪聲、相位截?cái)嗾`差對(duì)輸出波形的影響。d.wanfangdata.com.cn 返回 phase truncation noise