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- pulse position keying demodulator 脈位鍵控解調器
- 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。
- 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。
- 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。
- 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。
- Adjust parameters to determine reguired stitch lengths from 10-99 by conversion modes1.2 Or3, i. E., By pressing speed key, needle stitch Key or needle position key. 用於修正針跡參數,對倒順縫針跡誤差進行補償。調整為1、2、3三種模式,切換通過針跡設定鍵和針位設定鍵以及縫速設定鍵調整。調整範圍為10-99。
- 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
- 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。
- An unwanted false electronic pulse. 一種不希望有的假電子脈衝。
- Chaos Control in Chaotic Pulse Position Modulation 混沌脈衝位置調製中的混沌控制
- QPPM Quantized Pulse Position Modulation 量化脈衝調位
- The wood is held in position by a clamp. 木頭用鉗夾固定住了。
- The girl is quite suited for the position [work]. 這姑娘很適合擔任這個職務[這個工作]。
- I can live in clover when I get that position. 我得到那個職位便可過上優裕的生活。
- He bribes his leader to consolidate his position. 他賄賂他的領導來鞏固他的地位。
