modulation scheme的例句大全

a long code and a short code spread-spectrum modulation is used in the transmitter, and meanwhile an easy dispreading scheme is used in the receiver.

发射端采用长短码正交扩频的平衡调制，接收端采用一种简单解扩方式简化了并行MSK信号的解调，同时用短码全1引导长码同步的方法大大减小了长码的捕获时间。

This paper described the algorithm and design of the baseband data processing of digital television transmission system based on Chinese Digital Television Terrestrial Broadcasting Standard, and supplied an integration scheme of single carrier modulation system and multicarrier modulation system.

本文针对中国数字电视地面广播标准（DTMB）研究与设计数字电视传输系统中的发射端与接收端的基带处理模块，并且探讨多载波系统和单载波系统的融合设计方案。

a novel scheme of laser modulation directly by microwave subcarriers in satellite broadband networks

宽带卫星网微波副载波光调制系统方案

finally, maximizing the delay and throughput-based utility function, the cognitive cross-layer scheduling scheme generates the optimal subcarrier selection, power and modulation allocation for each multimedia packet.

最后，通过最大化基于时延和吞吐量的效用函数，得出智能跨层分配策略，并可以为SU的每一个数据包产生最优的子载波选择、功率以及调制方式分配方案。

An adaptive orthogonal frequency division multiplexing ( OFDM) scheme is described with a simple space time coded transmit diversity for frequency selected fading channel by combining adaptive modulation with spacial diversity.

将自适应调制技术和空间分集技术有机地结合起来，提出了一种与简单空时编码发射机分集相结合的恒定比特率自适应正交频分复用（OFDM）方案。

This paper investigates the matter of adaptive modulation applied on MIMO systems in time-varying channels and proposes a low complexity rate quantization scheme which is called ERQ ( Enhanced Rate Quantization).

探讨了时变信道里MIMO系统的自适应编码调制问题并且提出一个低复杂率量化方案，被称为增强型码率量化方案，也叫ERQ。

Chapter 4 recommends a Turbo coding scheme for digital amplitude modulation broadcasting ( DAMB) system after the introduction of Turbo codes.

第四章在介绍Turbo码的基础上给出Turbo码应用于DAMB系统的推荐方案；

the scheme makes use of ack/ nak information to control the modulation/ coding format, hence the c/ i information feedback is no more required.

利用ACK/NAK信息控制调制编码方式，从而不再需要C/I反馈。

This paper presents the scheme to detect the resonance point using two frequency serrodyne modulation, and uses the Lorentzian function to describe the expression of the output power at the exit port of the fiber ring resonator taking the temporal coherence of the laser into account.

采用两种频率的锯齿波组合调制，考虑激光器有限光谱线宽条件下，采用洛仑兹线型描写光纤环形谐振腔的输出光强表达式。

The author proposed the hardware circuit scheme and TDE ( Time Delay Estimation) model for the system with the PRBS and ultrasonic carrier adopting ASK modulation mode.

伪随机码与超声载波采用ASK（幅移键控）调制方式，介绍了伪随机码超声扩频测距硬件方案和超声测距时延估计模型。

The category and scheme of pulse time modulation are presented.

文章给出了脉冲时间调制的分类方法及实现方案。

in the scheme, a set of feature parameters are extracted from signal spectrum and constellation based on the differences between digital mixed signals and common digital modulation signals.

该方案利用数字混合信号与常用数字调制信号在信号频谱以及星座点的差异提取特征参数进行自动识别。

A scheme which adopts low chip-rate but no extra label length is proposed in this dissertation. The OC label is phase-shift keying ( PSK) modulated on the amplitude-shift keying ( ASK) modulation payload.

本文提出了一种采用低速OC标签但不增加标签开销的相移键控光码（PSK-OC）标签和幅移键控（ASK）净荷正交调制光分组格式。

All-optical regeneration based on self-phase modulation in PCF is proposed and the feasibility of this scheme is investigated both theoretically and experimentally.

提出了基于PCF自相位调制效应的全光再生的方案，理论和实验上论证了其可行性。

The quality of the output voltage in step level inverters could be improved both by the scheme of amplitude modulation and by the scheme of phase modulation.

通过调节各阶梯电平的幅度或各阶梯电平的相角都可以达到改善逆变电源输出电压质量的目的。

Compared with the traditional scheme of single-carrier modulation, OFDM technology has more effective anti-jamming ability and achieves higher transmission rate.

与传统的单载波调制方式相比，OFDM技术可以有效地抵抗信道多径干扰，提高系统的传输速率。

Usually in this encoding scheme, ON-Off-Keying ( OOK) modulation format is used.

通常情况下，这种编码方案会使用二进制启闭键控（00K）调制格式。

The Design Scheme and Realization of Frequency Modulation Broadcasting Station Intelligent Controll System on Campus Network

基于校园网的外语调频发射台智能控制系统的设计与实现

Threephase AC voltage regulation based on phase width modulation and on dual CPU scheme and circuit realization

利用双CPU方式的PWM消谐三相交流调压及电路实现

On this basis, the scheme of digital double closed-loop modulation demodulation with four-state-bias was brought forward, and the process of modulation demodulation under some different conditions were studied, and gave the modulate-demodulate equations.

在此基础上提出了基于四状态偏置的数字双闭环调制解调方案，分别研究了几种不同条件下的调制解调过程，并给出了调制解调方程。