• Relying on basis expansion model, this paper presents a differential space-time modulation method for flat rapidly fading channels.

    利用扩展模型,针对平坦衰落信道提出差分空时调制方法

    youdao

  • To combine multilevel code (MLC) with differential space-time modulation (DSTM), a new scheme based on an multilevel low-density parity-check (LDPC) code with iterative decoding is proposed.

    提出一种新的结合多级编码差分空时调制的联合编码调制方案

    youdao

  • Space-time trellis code combining space diversity with code and modulation, can improve efficiency and reliability of communication system in wireless channel efficiently.

    发射端分集、编码调制结合时格可以有效地提高信号无线衰落信道传输有效性可靠性

    youdao

  • The traditional differential space-time block code (DSTBC) suffers from the signal constellation expansion for QPSK modulation.

    传统差分分组编码(DSTBC)在QPSK调制时存在着信号星座扩展

    youdao

  • Aimed at dead time effect of voltage-fed space vector pulse width modulation (SVPWM) inverter, a novel compensation method detecting current polarities from the current vector was presented.

    针对电压源空间矢量调制逆变器效应,提出了种根据电流矢量判断电流极性的死区补偿方法

    youdao

  • During a modulation period, several dead voltage vectors were synthesized. Using the control software, the reference voltage space vector could be corrected. Thus the dead-time effect was eliminated.

    一个调制周期内预先求出几个电压矢量合成矢量,控制软件的方法实现参考空间电压矢量校正从而消除死区效应

    youdao

  • The sample-time-staggered space vector modulation (STS-SVM) is a novel modulation strategy with high performance.

    错时采样空间矢量调制STS-SVM)技术一种品质的新型调制技术。

    youdao

  • Dead-time compensation and minimum pulse-width limitations lead to losses in the linear modulation region of space vector modulation.

    补偿最小限制减小空间矢量脉宽调制线性调制

    youdao

  • In this paper, the principle of Sampling Time Staggered Space Vector Modulation (STS-SVM) as well as its realizing method in cascade multilevel converters is presented.

    该文提出并分析了错时采样空间矢量调制(STS - SVM)技术工作原理及其级联型多电平变流器上的实现方法

    youdao

  • Starting from the precise pair-wise error probability (PEP), the joint border of group coding signal error probability (SEP) in differential unitary space-time (DUST) modulation is deduced.

    精确成对错误概率(PEP)出发,推导得到了DUST调制符号误码率(sep)的联合边界

    youdao

  • A data aided symbol timing estimation algorithm was proposed for burst-mode space-time trellis coded multi-level continuous phase modulation (STTC-MCPM) systems in Rayleigh fading channels.

    针对衰落信道中突发模式的网格编码的多电平连续相位调制(STTC - MCPM)系统提出种基于数据辅助符号定时估计算法

    youdao

  • The output voltage waveforms of matrix converter which is based on the space vector modulation are analysed under the unbalanced input voltage. A time-variant modulation ratio method is proposed.

    对称输入电压情况,对基于空间矢量调制矩阵变换器输出电压波形进行了分析,提出了利用时变调制比改善输出电压波形的方法。

    youdao

  • Based on OFDM system, a novel space-frequency-time code which combined trellis-coded modulation with differential space-time block code was proposed.

    基于OFDM(正交分复用)系统提出一种新的频时三维编码网格编码调制差分空时分组进行组合链接设计。

    youdao

  • Based on OFDM system, a novel space-frequency-time code which combined trellis-coded modulation with differential space-time block code was proposed.

    基于OFDM(正交分复用)系统提出一种新的频时三维编码网格编码调制差分空时分组进行组合链接设计。

    youdao

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