分析各类光发射机的鉴别、调制方式和质量指标特性,并举出实际应用事例。
Here we analyzed the quality property, modulation manner and identification of various kind of transmitter with several practical application cases.
分析了信道编译码方法、交织与解交织及DMT调制与解调等关键技术。
The error correcting and decoding, interleave and and DMT modulation and demodulation are analyzed in detail.
在分析三角波调制的线性调频信号的基础上,提出了用DDR技术消除速度对测距的影响方法。
On the bases of analyzing triangle wave form modulated LFM, the method of using DDR (Dual Channel Directional Doppler range) technique to eliminate the influence of speed to range is presented.
数字传输系统的品质因数Q—这个新概念可以用于具有各种调制的数字传输系统性能的分析。
The digital transmission system Q factor-a new concept may be used to analyse the characteristics of digital transmission systems with different kinds of modulation.
本文对窄脉冲调制的高频大功率源进行理论分析和电路设计。
This paper discusses the theory analysis and circuit design of high-frequency high power source which is modulated by narrow pulse.
通过简述多种调制方式中频信号数字产生的基本处理方法,提出了一种具体实施方案,并分析了其技术特点。
This paper discusses the digital generation method for communication IF signals and proposes a concrete implementation resolution and analyzes its technical characteristics.
由于是在留数分析的基础上进行RGA计算,因此,这种调制信号选取方法可有效降低计算量和缩短选取进程。
Because the RGA computation is implemented based on the residue analysis, the proposed method can effectively reduce computational complexity and shorten signal selection process.
通过对调制信号作谱分析,以其频谱中是否存在某种故障的特征频率分量来诊断有无该种故障。
The fault is diagnosed by extracting the fault feature component from the frequency spectrum of the modulated signal.
调制域及脉冲分析仪利用时间和频率构成的平面域对信号进行分析。
Modulation Domain and Pulse Analyzer(MDPA) analyzes signal using a plane domain which is consisted of frequency and time.
理论分析和数值计算结果表明,可变包长可变调制方式的ARQ系统可以更好地适应衰落信道,其吞吐量性能要优于普通的ARQ系统。
The optimum switching thresholds that maximize the throughput are found. Theoretic analysis and numerical results indicate that VS-AM-SR-ARQ system can get good performance in fading channels.
在分析空间矢量调制(SVPWM)基本原理的基础上,证明了SVPWM具有最大的直流电压利用率。
By analyzing the base principle of space vector pulse width modulation (SVPWM), it is proved that the DC voltage utilization.
调制域分析已经成为现代测试技术不可或缺的部分,在显现频率变化信号时优于时域测量和频域测量。
Modulation domain analysis has become an important part for modern measurement technology. It is better than time domain and frequency domain measurement when indicating frequency variable signal.
定性地分析了各优化方法调制波的谐波特性,从本质上分析了它们降低开关损耗的基本思想。
The harmonic peculiarity of carrier waves of each optimized method and expresses elementary ideas in methods of decreasing switching dissipation above-mentioned essentially.
分析了GRI脉冲序列与参考脉冲,以及调制码组与罗兰C脉冲组的时间关系。
The relationships between GRI pulse sequences and reference pulses, as well as between modulation code groups and Loran-C pulse groups are analyzed.
运用MATLAB语言模拟实现了数字信号的ASK、FSK、PSK调制与频谱分析。
The paper uses MATLAB to simulate ASK, FSK, PSK modulation of digital signal and spectrum analysis.
以可调谐双稳外腔半导体激光器(ECLD)为例,指明了在损耗调制下,扰动近似分析可能会失效。
Taking an external cavity laser diode (ECLD) as an example, calculations indicate that the perturbation analysis may become invalid under loss modulation.
对阿基米德螺旋线调制斩波器的曝光效率进行了理论分析和数值模拟,得到斩波器曝光效率对后续信号处理的影响。
The Archimedes spiral cord modulating chopper's exposure efficiency was theoretically analyzed and numerical simulated, and its impact on the following signal processing was obtained.
数字调制方式的识别对于通信信号分析有着重要的作用。
Identification of digital modulation schemes plays an important role in signal analysis.
提出了一种利用FX489实现GMSK调制解调的方法,分析了其性能。
It introduces a method that USES FX489 to complete GMSK modulation and demodulation, it's performances is analyzed.
分析了二能级原子在振幅调制驻波场中动量扩散模型。
In this paper the model of two level atomic momentum spread in amplitude modulated standing light wave was investigated.
介绍了调制域分析技术的原理,重点介绍基于FPGA的零空闲(ZDT)计数和测量补偿技术。
It introduces the project and key technology of modulation domain analysis, emphasis on the ZDT counter and the error compensation circuit based on FPGA.
通过最终的的调制特性分析,给出最佳的器件工艺结构。
With the final analysis of modulating characteristic, the optimized technical structure was presented.
然后利用弹性波理论和信号随机调制理论,分析了多路随机振动互相作用。
Then the mutual affection of multi-pneumatic-hammers was studied using the theory of elasticity wave and random modulation.
对调制域测量技术作了简要介绍,探讨了调制域分析仪在复杂信号频率测量分析上的一些应用。
The modulation domain measurement technique is presented simply. The application of modulation domain analyzer in the complicated signal frequency measurement analysis is probed.
介绍了温度测量及调制吸收光谱技术原理,分析了调制幅度对气体温度测量的影响。
Temperature measurement principle and modulation absorption spectroscopy were introduced, and the influence of modulation amplitude on gas temperature measurement was analyzed.
多调制源、多载波信号的循环自相关解调分析存在交叉项的干扰,这使循环自相关解调方法的实际应用产生了困难。
The cross-term interference caused by multi-modulator and multi-carrier makes it difficult the use of the cyclic autocorrelation demodulation.
无线电信号调制识别的基本任务就是对所截获的不明信号的通带调制种类进行分析、判决和归类。
The basic tasks of radio signals modulation identification are analysis, decision and classification of modulation type for intercepted unknown signals.
在模拟的声压分布的基础上,分析了驻波声场调制气泡的机理。
Based on the distribution of sound pressure, the mechanism for bubble modulation is analyzed.
在模拟的声压分布的基础上,分析了驻波声场调制气泡的机理。
Based on the distribution of sound pressure, the mechanism for bubble modulation is analyzed.
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