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- pulse position keying demodulator 脉位键控解调器
- 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. 光脉冲位置调制(PPM)具有能量传输效率高(每光子传输的信息量),抗干扰能力强等优点,是大气激光通信中的一项关键技术,因此越来越受到人们的重视。
- In the paper, FWHM（half maximum and half width） method is used to determine the single pulse position. 但是，扫描相机扫描速度的不均匀性(或称非线性)是一个普遍存在的问题，它直接影响到扫描时间的测量。
- The pulse position modulation(PPM) is widely used in indoor wireless infrared local network for its high power efficiency. 脉冲位置调制(PPM)具有功率利用率高的优点,在室内红外无线局域网中得到广泛的应用。
- The performance of digital impulse radio multiple-access receiver (DIRMA) with orthogonal M-ary pulse position modulation (PPM) is analyzed. 摘要本文分析了基于正交M元脉位调制的数字冲击无线电多址接收机性能。
- The PPM(Pulse Positioning Modulation) of the BPL signal is the key problem to expanding the BPL channel as a communication channel. 实现BPL长波信道通信能力扩展的一个重要技术环节是对组重复间隔(GRI)脉冲的脉位调制。
- This dissertation attempts to demodulate the Pulse Position Modulation (PPM) .It discusses the theories about this technology and makes simulation. 本文尝试对脉冲位置调制(PPM)进行解调，并进行了相关的理论论证和仿真。
- 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. 用于修正针迹参数,对倒顺缝针迹误差进行补偿。调整为1、2、3三种模式,切换通过针迹设定键和针位设定键以及缝速设定键调整。调整范围为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. 随机脉位调制信号不仅具有良好的距离和速度分辨力，而且具有较低的被截获概率和较高的抗干扰性能。
- To eliminate ultrasonic crosstalk,the Chaotic Pulse Position Modulation(CPPM)is used to construct the short triggering sequence for each ultrasonic transducer. 为消除串扰,采用混沌脉冲位置调制构造每个超声换能器的短发射序列;
- Pulse position modulation(ppm. 脉冲调制
- 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. 该文提出了一种利用随机多元码脉位调制(PPM)和脉间伪随机或随机二元序列相位调制(PM)相结合的混合波形设计方法。
- 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. 摘要提供了一种新的双随机脉冲调制技术，它能够很好地减小电力电子系统中存在的传导电磁干扰，这个调制技术是通过同时改变开关频率和脉冲的上升沿位置来实现的。
- An unwanted false electronic pulse. 一种不希望有的假电子脉冲。
- Chaos Control in Chaotic Pulse Position Modulation 混沌脉冲位置调制中的混沌控制
- QPPM Quantized Pulse Position Modulation 量化脉冲调位
- The wood is held in position by a clamp. 木头用钳夹固定住了。
- The girl is quite suited for the position [work]. 这姑娘很适合担任这个职务[这个工作]。
- I can live in clover when I get that position. 我得到那个职位便可过上优裕的生活。
- He bribes his leader to consolidate his position. 他贿赂他的领导来巩固他的地位。
