抽樣數據信號 的英文怎麼說
中文拼音 [chōuyàngshǔjùxìnháo]
抽樣數據信號
英文
sampled data signal- 抽 : 動詞1 （把夾在中間的東西拉出; 提取） take out （from in between） 2 （從全部里取出一部分; 騰出） ...
- 樣 : Ⅰ名詞1. （形狀） appearance; shape 2. （樣品） sample; model; pattern Ⅱ量詞（表示事物的種類） kind; type
- 數 : 數副詞（屢次） frequently; repeatedly
- 據 : 據Ⅰ動詞1 （占據） occupy; seize 2 （憑借; 依靠） rely on; depend on Ⅱ介詞（按照; 依據） according...
- 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
- 抽樣 : [統計] sample; sampling; specimen; samples draw
- 數據 : data; record; information
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Firstly, on the base of analyzing psk ' s theory and audio - card ' s constitute and data transfers, bdpsk and qdpsk soft - modulation and soft - demodulation systems based on audio - card are studied and implemented, including generating digital carrier sequence, synchronizing carrier, designing filter, sampling and judging, etc. the system adopts coherent demodulation method, synchronizing carrier adopts costas loop
本文首先分析了調相信號調制解調的基本理論和多媒體計算機（ mpc ）聲卡組成原理及數據傳輸等方面的內容，然後研究並實現了基於計算機聲卡的bdpsk和qdpsk信號軟體調制解調系統，內容包括數字載波序列的產生、載波同步、濾波器設計，信號的抽樣判決等。On the basis of high speed hybrid filter banks adc system, a kind of downsampler model based on bandpass sampling theorem is presented, and analyzed, proved in time and frequency domain, in addition a downsampler is designed according to the model. a class of high effective hybrid filter banks adc system which bases on the downsampler and radio frequency spectrum is proposed, of which digital signal rate falls m times as fast as the former
作者提出了一種基於帶通采樣定理的抽取器數學模型，對該數學模型進行了時域、頻域的分析證明后，設計了一種基於該數學模型的抽取器，進而根據無線電射頻信號頻譜的特點，提出了高效混合濾波器組adc系統，其數字信號輸出速率比高速混合濾波器組adc系統降低m - 1倍。
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