研究了不同调制速率下的增益开关半导体激光器的最佳工作状态。
The optimal operating condition of gain switched semiconductor laser with different modulation rate is studied in this paper.
该方案的显著特点是：调制方式、调制速率、中频频率皆可编程设置。
The outstanding features of this plan lie in the programmable modulate mode, modulate rate, IF rate and so on.
同时，根据信道特点和数据传输速率的要求给出了深空通信的调制方式。
Meanwhile, modulation schemes for deep space communication are provided based on channel features and requirements on data transmission rates.
小灵通使用TDMA(分时多址)/(时分复用)作为其接入无线网络的方法，且声讯编码以自适应差分脉冲编码调制方式调制，速率为每秒32千比特。
PHS uses TDMA/TDD for its radio channel access method, and 32 kbit/s ADPCM for its voice codec.
实践证明，以扩频调制、解调为基础的电力线载波通信方案可获得较高的通信速率和较低的误码率。
It has been proved in reality that a PLCC based on spreading spectrum modulation and demodulation can achieve a higher communicating rate and a lower bit error rate.
目前，无人机数据链系统采用的调制模式都比较简单，如2FSK、BPSK、直接扩频技术等，传输速率与抗干扰能力有限。
The modulation types of data link for UAV are simple, such as BPSK, 2FSK , direct spread spectrum. The transmitted rate and anti-interference performance of them are limited.
利用降低码片速率有效降低每路信号占有的带宽，将每路信息的比特分配在不同的调制载波上，减少了各路信号间的多址干扰。
Frequency width is compressed by decreasing signature-code speed and using bit-signal modulates by different carrier so as to decrease multi-user interference.
研究基于小波变换有效提取信号瞬变特性的功能，对数字调制移相键控(PSK)信号进行符号速率估计。
Studies the function of wavelet transform (WT) that can effectively distill the transient characteristics of digital signals to estimate the symbol rate of PSK signals.
文中运用三层速率模型，对小信号调制下单量子阱激光器的频率响应进行模拟分析。
This paper presents a simulative method to solve the frequency response of single quantum well laser diode under small signal modulation.
对声光调Q技术进行了分析，依据考虑Q调制之后的速率方程，研究了调Q激光器的优化问题。
Q-switching technique is studied based on the Q-switching rate equation. And the optimum problem of Q_Switched lasers is also studied.
同时在OFDM调制时可以采用M -QAM映射方式，提高短波跳频系统的信息传输速率。
At the same time, M-QAM mapping can be used in OFDM for improving data transportation speed.
随着调制阶数的增加，正交空时分组码的性能越来越差，但传输速率变大；
If the modulation order is different, the higher the order is, the worse the performance is, but the transmitting rate is bigger.
我们的分析结果还指出这种多重单频正弦波泵浦相位调制技术更加适合于将来的高比特速率系统。
Our simulation results also show that these multi-tone pump phase modulation techniques are more appropriate for the future high bit rate systems.
该模型支持采用自适应调制和编码(AMC)的多速率非理想信道，而AMC在无线网络中是增加有效传输率的关键技术。
The model supports the multi-rate non-ideal channel using adaptive modulation and coding (AMC), which is the key feature in the wireless networks to increase the effective transmission rate.
本文从提高无线移动传输系统传输速率和对抗多径的角度，研究OFDM调制技术在无线移动通信中的应用。
The thesis researches the application of OFDM modulating technology on mobile communication based on improving transfer effect in limited band broad and overcoming Multi_path fading.
由于在本课题中采用了新的调制方式，提高了数据传输的速率，在今后的实际应用中，一定会有很好的经济效益和社会效益。
The data transmission rate will be increased to a large extent due to the advanced modulation in the task. The technique being used in practice will be useful in terms of economic and social aspects.
当进行高速水下通信时，由于水下信道的频带有限，扩频和MFSK调制方式无法解决高速率信息传输和可利用信道频带窄的矛盾。
Because of limited frequency band of channel, spread spectrum and MFSK modulations can not resolve that high speed transmission is in contradiction with limited frequency band.
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。
Compared with the traditional scheme of single-carrier modulation, OFDM technology has more effective anti-jamming ability and achieves higher transmission rate.
实验结果表明，所提出的空频二维自适应调制算法可以在保证系统目标传输速率和目标误比特率的前提下，进一步减小系统所需要的平均发射功率。
The simulation results show that the proposed algorithm can reduce the overall transmission power further while the target transmission rate and bit error rate are met.
本文阐述了未知符号序列经线性调制后，在接收端利用循环相关理论对符号速率进行盲估计的问题。
This paper considers the problem of blind symbol rate estimation of signals linearly modulated by a sequence of unknown symbols.
作为一类特殊的多速率滤波器组，调制滤波器组由于设计简单而备受关注。
As a special kind of multirate filter Banks, modulated filter Banks have been paid more and more attention because of their simple designs.
多载波调制技术是一种并行数据处理方式，有效地对抗多径衰落，可以提高无线带限信道的数据传输速率。
Multicarrier modulation is a form of parallel data transmission, which is efficient to reduce the detrimental effects of multipath fading.
分析了速率偏频激光陀螺的偏频转台对陀螺漂移的调制效应，通过数字仿真定量分析了速率偏频激光陀螺漂移引起的导航参数误差。
The modulation effect of the bias of rate biased ring laser gyro is analysed. The error which is induced by the bias of rate biased ring laser gyro is analysed through digital simulation.
最后通过调制方式及码速率识别算法对系统平台硬件实现进行了验证。
At the end of the essay we validate the whole system platform with the recognition of modulation and cord rate.
在高速率的OFDM设计中，MQAM-TCM调制已被广泛采用。
差分输入由模拟调制器以最高40MSPS的采样速率进行采样。
The differential input is sampled at up to 40 MSPS by an analog modulator.
分析了频谱倒置对不同信号调制方式的影响；给出了实现无线电频谱倒置的算法；以多速率数字信号处理理论为基础给出了具有低计算复杂度的实现方案。
The impact of the inverse placement of spectrum for signals with different modulation modes is analyzed, then the method to invert radio signal spectrum is given.
不同的调制解调器通信速率也不相同。
不同的调制解调器通信速率也不相同。
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