wideband modulation 中文意思是什麼
wideband modulation
解釋
寬帶調制- wideband : 多種頻率的
- modulation : n 調整，調節；（聲調的）抑揚，變化；【音樂】轉調，變調；【無線電】調制。 amplitude modulation 振...
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Two kinds of typical wideband signal, frequency modulation ( fm ) signal and frequency spread signal, is analyzed qualitatively with wideband ambiguity function
以寬帶模糊度函數為工具定性地分析了兩類典型寬帶信號，即調頻信號和頻率分集信號。 -
The system can scan the wideband frequency 、 lock the frequency of receiving data and convert the if signal to digital data timely. directly sampled data by a / d or saved data by sdram ( when signal speed is too high ) can be transmitted to pc by usb2. 0 or to dsp by link port in order to complete the modulation detecting and intercepting of signals
信號經高速a / d變換可以實時或經sdram緩沖后（當采樣速率過高時）由usb2 . 0總線傳入pc或由linkport傳入後端雙dsp綜合信號處理板進行調制識別處理（或接收由雙dsp信號處理完的數據並傳入pc機完成後續運算處理） ，完成無線電監測。 -
The closed - form performance formulae of cck modulation are derived under awgn channel and rayleigh fading channel, whose validity is proved by simulations. multi - carrier wideband cdma architecture based on complete complementary codes spread ( ccc - cdma ) has high spectrum efficiency without mai theoretically, which meets the general requirements of b3g communications
研究了高速無線局域網ieee802 . 11b中的基帶技術，特別是基於互補碼擴頻的cck調制，推導出其在高斯噪聲通道和在多徑衰落通道條件下的性能公式。 -
After comparing several analog and digital generation methods of lfm signal, this paper confirms the system scheme as direct digital synthesis plus quadrature modulation. combined with agilent arbitrary waveform generator and phasor signal generator, a generation system is established and a ultra - wideband signal, whose bandwidth is 1ghz and carrier frequency is 4ghz, is generated
通過對幾種模擬與數字線性調頻信號的產生方法的比較，本文採用了以直接數字波形合成（ ddws ）加正交調制的系統方案，並結合實際的儀器設備，產生了帶寬為1ghz ，載頻4ghz的超寬帶線性調頻信號。 -
Sam. wideband air interface - scalable adaptive modulation physical layer specification - public safety wideband data standards project - digital radio technical standards
寬帶空中介面.可擴縮自適應調制
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