调制系统

导出电光调制系统偏振传输矩阵。

The polarization transmission matrix in electrooptical modulating system is given .

一种用于激光屈光术的新型激光光斑调制系统

Introduction of a new beam modulating system for the laser refractive surgery

基于FPGA的正交调制系统的研究与算法设计

Study of QPSK Modulation System Base on FPGA and Design of Arithmetic

OFDM调制系统主要包括星座映射、IFFT变换等部分。

OFDM modulation system mainly includes constellation mapping , IFFT translation .

DDS在数字调制系统中的应用

Application of DDS in Digital Modulation

对于调制系统，给出了系统实现框图，并研究了其中的差分编码技术，且在Matlab中进行了性能仿真。

For modulation system , it gives the block diagram of the system , and studies the differential encoding technology , does simulation of the performance in Matlab .

调制系统中的MSK，GMSK的仿真分析与应用

Simulation Analysis and Application of MSK , GMSK in Modulation System

本文研究了线性码编码的MSK调制系统。

MSK modulation coded by linear codes is studied in the paper .

基于PDA算法的IDMA高阶调制系统

IDMA Higher-Order Modulated Systems Based on PDA Algorithm

在QPSK调制系统下仿真看到其信噪比和误码率改善勤很可观。

The SNR improvement and code error probability reduce are considerable in QPSK modem system .

LIA组元的脉冲功率调制系统研制

A pulsed power modulated system of an accelerator module for the LIA

对电针镇痛的机理研究揭示，电针是通过激活机体内源性痛觉调制系统如内源性阿片肽和5-HT下行抑制系统而起镇痛作用。

EA plays its analgesic role via activating the endogenous pain modulating systems , including endogenetic opioid and serotonin descending system .

MPSK调制系统中的自适应信道估计

Adaptive Channel Estimation for MPSK Modulation System

阐述了基于MATLAB的软件无线电方式表现的线性频率调制系统，并对雷达信号进行了调制与解调仿真。

A linear frequency modulation system which is in the form of software radio and based on Matlab is described . Furthermore , the process of modulating and de-modulating of radar signal is simulated .

在多径衰落信道下，提出了一种基于ML的新型离散小波包调制系统。

A novel Discrete Wavelet Packet Modulation ( DWPM ) system based on Fractionally Spaced Equalizers ( FSE ) and the Maximum Likelihood ( ML ) algorithm is studied for multipath fading channels .

本文对PAPR抑制算法的研究和分析，对小波包多载波调制系统峰均比问题的解决具有一定的参考意义。

This PAPR reduction algorithm on the research and analysis can be referenced in dealing with wavelet packet multicarrier modulation system PAPR problems .

无线光OOK调制系统交织器的优化设计

Interleaver Design for OOK in Optical Wireless Communication

最后，采用DSP技术实现OFDM基带调制系统的设计，并对其外围硬件电路做了详细地分析，提出OFDM系统设计的方案，完成设计任务。

Finally , DSP is adopted to design the base band modulation system , its peripheral hardware circuits are analyzed in detail , OFDM system design plan is proposed and the design task is completed .

基于信道容量规则和分组分割，构造自适应于AWGN和Rayleigh两种信道的多级编码系统，为移动信道编码调制系统的设计度量提供参考。

Based on capacity rule and block partitioning ( BP ) strategy , a robust multilevel coding ( MLC ) scheme is proposed for AWGN and Rayleigh fading channels .

最后，本文将CT-TCM引入基于信道状态信息的自适应编码调制系统。

Finally , the paper introduces CT-TCM to ACM system based on channel state information .

介绍了一种采用数字信号处理器（DSPs）及直接数字频率合成器（DDS）技术实现通用数字调制系统的设计方案。

The article introduces a design scheme of general digital modulation system which is realized by the use of digital signal processors ( DSPs ) and direct-digital synthesizes ( DDS ) .

本文以卫星双向时间传递的SATREModem发射时延的测量为例，给出了一种BPSK调制系统时延的高精度测量方法。

In this paper , based on the measurement of the transmitting delay of SATRE Modem , a high accuracy measurement method for time delay in BPSK system is provided .

对两种EM算法的的估计性能、复杂程度和适应的环境进行了分析和对比，频域EM算法具有更低的复杂度，并且更适合于严重衰落信道和高阶调制系统。

The estimation performance , complexity and application settings of the two EM algorithms are analyzed and compared . The algorithm disposed in the frequency domain has lower complexity and better performance for deep fade channels and high order modulation systems .

仿真分析了小波包调制系统在加性高斯白噪声（AWGN）信道、瑞利（Rayleigh）平坦衰落信道以及频率选择性衰落信道中各子信道的误比特率性能。

In WPM the bit error rate ( BER ) of subchannels performance in the additive white gaussian noise ( AWGN ) channel , Rayleigh flat fading channel and frequency selective fading channel has been shown . 2 .

仿真实验表明滤波多音调制系统的容量在802.11a的环境下，未编码时系统可达到10Mb/s的速率。

Simulation results show that the achievable bit rates of the uncoding system could reach 10 Mbps under the circumstances that the capacity of filtered mul-titone modulation system is 802.11a .

介绍了某直接序列扩频、QPSK调制系统接收通道中四相Costas载波跟踪环的原理及其基于DSP+FPGA的实现。

In this paper , the principle of four-phase Costas Loop in a direct-sequence spread-spectrum ( DS / SS ) & QPSK-modulated communication system and its implementation based on DSP + FPGA are presented .

结果表明，与二进制卷积码和Turbo码相比，非二进制双k码作为一种误比特率、计算量及译码时延的折衷方案，可以应用于正交调制系统。

The simulation results show that , compared with binary convolutional codes and Turbo codes , nonbinary dual-k codes can be regarded as a tradeoff among bit error rate ( BER ), computations and decoding time delay , and it can be applied to M-ary orthogonal modulation systems .

最后分别就两种自适应均衡算法（LMS、RLS），结合一种具体IEEE802.16单载波调制系统推荐测试信道进行了仿真，得出RLS算法优于LMS的结论。

Finally , according to a special ( IEEE 802.16 ) test channel model , the performance of two equalization algorithms LMS and RLS is simulated , and it is found that the RLS algorithm is superior to LMS algorithm .

本文提出一种在离散多频（DMT）调制系统中采用区域分割，依次沿着各子信道进行标量矢量量化器（SVQ）成形的方法，并对其性能进行了分析和模拟。

This paper has presented a scalar vector quantizer ( SVQ ) shaping method across then subchannels using region partition in the DMT modulation system , analyzed and simulated its performance .

介绍了以小波包函数为载波的多载波调制系统，分析了WPM信号符号周期内峰值功率的互补累积分布函数（CCDF）及其对PAPR性能的有效描述；

Multicarrier modulation system based on wavelet packet transform is introduced . By analyzing the CCDF about peek value 's power , its efficiency on measuring the performance of PAPR is demonstrated .