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- In the paper, FWHM(half maximum and half width) method is used to determine the single pulse position. 但是,掃描相機掃描速度的不均勻性(或稱非線性)是一個普遍存在的問題,它直接影響到掃描時間的測量。
- The pulse position modulation(PPM) is widely used in indoor wireless infrared local network for its high power efficiency. 脈衝位置調製(PPM)具有功率利用率高的優點,在室內紅外無線區域網中得到廣泛的應用。
- The performance of digital impulse radio multiple-access receiver (DIRMA) with orthogonal M-ary pulse position modulation (PPM) is analyzed. 摘要本文分析了基於正交M元脈位調製的數字衝擊無線電多址接收機性能。
- This dissertation attempts to demodulate the Pulse Position Modulation (PPM) .It discusses the theories about this technology and makes simulation. 本文嘗試對脈衝位置調製(PPM)進行解調,並進行了相關的理論論證和模擬。
- Random pulse position modulation(RPPM) signal not only has good resolution of distance and velocity, but also has low probability of interception and strong properties of ECCM. 隨機脈位調製信號不僅具有良好的距離和速度分辨力,而且具有較低的被截獲概率和較高的抗干擾性能。
- To eliminate ultrasonic crosstalk,the Chaotic Pulse Position Modulation(CPPM)is used to construct the short triggering sequence for each ultrasonic transducer. 為消除串擾,採用混沌脈衝位置調製構造每個超聲換能器的短髮射序列;
- Pulse position modulation(ppm. 脈衝調製
- DD, T/P ratio were positively correlated with ETx. eTx與 DD。 T/P比值之間,ET與nbH之間均存在有統計學意義的正相關關係;
- Has politeness positive correlation with tact? 此研究有兩個亟待解決的問題:(1)禮貌與得體總呈正相關嗎?
- HSI data also show a positive correlation with GSI. 而肝臟粗脂肪含量在雌雄個體上有顯著的差異,雌個體比雄個體高。
- PPM(Pulse Position Modulation), as one of key technologies in the atmosphere laser communication, arouses more and more attention by the virtue of high power efficiency and strong resistance to interference. 光脈衝位置調製(PPM)具有能量傳輸效率高(每光子傳輸的信息量),抗干擾能力強等優點,是大氣激光通信中的一項關鍵技術,因此越來越受到人們的重視。
- The design method for hybrid waveforms utilizing ran-dom poly-cell code pulse position modulation (PPM) and pulse-to-pulse binary sequences phase modulation (PM) is introduced in thispaper. 該文提出了一種利用隨機多元碼脈位調製(PPM)和脈間偽隨機或隨機二元序列相位調製(PM)相結合的混合波形設計方法。
- A novel dual randomized PWM modulator with synchronous varying switching frequency and pulse position delay is proposed to reduce conducted electromagnetic interference (EMI) in power converters. 摘要提供了一種新的雙隨機脈衝調製技術,它能夠很好地減小電力電子系統中存在的傳導電磁干擾,這個調製技術是通過同時改變開關頻率和脈衝的上升沿位置來實現的。
- The area of fibrosis was positively correlated with BUN and Scr. 腎間質纖維化面積分別與BUN、Scr相關。
- In guomisi geogas, Zn ans Cd has notable positive correlation. 郭米寺地氣中Zn和Cd存在顯著的正相關關係。
- BMR was positively correlated with fat free mass(FFM). 基礎代謝與去脂組織(FFM)呈顯著正相關 ,用 FFM校正以後 ,基礎代謝的能量消耗肥胖組兒童仍然高於非肥胖組兒童。
- The CRP level and CSS are positive correlated with TLR4. ACS 患者外周血單核細胞TLR4水平與CRP 及CSS 呈正相關。
- The PPM(Pulse Positioning Modulation) of the BPL signal is the key problem to expanding the BPL channel as a communication channel. 實現BPL長波通道通信能力擴展的一個重要技術環節是對組重複間隔(GRI)脈衝的脈位調製。
- There was a positive correlation among HAMD/HAMA and GSRS. HAMD/HAMA和GSRS評分間有一定相關性,即IBS患者的情緒障礙與腹部癥狀有一定相關性。
- The ages wers not positively correlated to the hair Pb levels. 男女發鉛「超標流行率」有顯著性差異;無論男女年齡與發鉛值均無相關。