papr 中文意思是什麼
papr
解釋
峰值與均值比-
Psychology in color and color harmony theory were discussed in this papr, especially a new method of their application in radiation imaging were put forward
摘要主要闡述了色彩心理學及色彩調和理論，並針對輻射成像及其應用特點，提出了將色彩學中的調和理論應用於輻射成像的偽彩色的處理技術中的新方法。 -
3. we propose a new spreading sequence design scheme. in the uplink, using golay sequence, cinew sequence or zadoff - chu sequence, in the downlink, using wh sequence as the spreading sequence, we can control the papr of mc - cdma below 7db and ber below le - 3 ( snr = 20db )
提出mc - cdma中擴頻序列的新型設計方案，在上行通道，採用golay序列， cinew序列或zadoff - chu序列，在下行通道，採用wh序列作為擴頻序列可以控制mc - cdma峰平比在7db以內，在信噪比為20db時，系統誤碼率小於1e - 3 。 -
Through measuring and analyzing the thermal process of different paving material surface under summer sunshine in some cities, this papr shows that planting cover is the most ideal paving method which can improve the ecological and thermal environment of cities
對幾種城市地表鋪面材料，在夏季陽光下其表面熱過程進行測試分析，表明種植植被是最為理想的改善城市生態熱環境的地表鋪面材料 -
Papr reduction of ofdm signal using clipping technique in wireless lan system
系統限幅峰平比降低技術 -
Research on the techniques of reduction papr in ofdm system
系統中峰均功率比技術的研究 -
A upper bound on papr distribution for ofdm signals
分佈的一種上邊界 -
Practical method of papr reduction in ofdm system
的一種實用方法 -
Papr powered air purifying respirators
電動空氣凈化呼吸器 -
5. in the research on reducing papr of wavelet packet modulation signals, the dissertation proposes a new method - ? terative - shifting linear - searching
研究了克服快速時變衰落的分集技術，提出了時間/尺度rake接收機。 -
2. clipping is used to reduce the papr ( peak - to - average power ratio ) of multicarreir gmsk signal. the conclusion is that the moderate clipping introduces small performance degradation
採用削波方法來降低多載波gmsk信號的峰平比，結論是中等程度的削波只引起系統性能的略微下降。 -
One of the major drawbacks of ofdm system is that the ofdm signal of the transmitter can have high peak - to - average power ratio ( papr ), which limits ofdm ’ s wide applications
但是ofdm系統的一個主要缺點就是發送端的傳輸信號具有較大的峰值平均功率比（ papr ） ，這限制了ofdm技術的廣泛應用。 -
At the same time, a simple channel estimator that can suppress the peak - to - average power ratio ( papr ) for ofdm system with multiple transmitter antennas is proposed, its simulation proves again the result. ( 5 ) ofdm receiver is proposed with multiple transmitter antenna and alamouti scheme
結果表明，多個獨立天線ofdm系統的性能明顯優于單天線的ofdm系統；同時還給出了一種簡單的能有效抑制峰值功率平均功率比（ papr ）且適于多發射天線ofdm系統的導頻符號輔助的通道估計方法，模擬結果再次證明了上述結論。 -
This dissertation researches on wavelet theory applied to information transmission, including cdma spreading code design, waveform coding in digital modulation, over - saturated multi - access communication, diversity techniques for multi - path fading channels, and peak - to - average power ratio ( papr ) reducing methods for the wavelet packet modulation signals, etc.
本文以子波理論為工具，較深入地研究了通道傳輸方面的幾個問題，內容包括cdma擴展碼的設計、數字基帶波形成形技術、過飽和多址通信、克服衰落的分集技術和減小子波包調制信號的峰值功率/平均功率比值的方法等。
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