modulation type中文是什么意思

发音:

中文翻译
造句

[网络] 调制类型；调制方式；调变方式

type of modulation 调制方式
frequency modulation type altimeter 调频式测高计
jamming modulation type 干扰调制样式
line-type modulation 线式调制
ltm line type modulation 线路类型调制
modulation type amplifier 调制放大器
modulation type compensation 调制型补偿
modulation type multiplier 调制式乘法器; 调制型乘法器
modulation type switched transponder 调制型变换转发器
modulation-type switched transponder 调制变换转发器
velocity-modulation type buncher 速度调制型聚束器
modulation n. 调整，调节；(声调的)抑扬，变化；【音乐】转调，变调；【无线电】调制。 amplitude modulation 振幅调制，调幅。 frequency modulation 频率调制，调频。 overmodulation 过(度)调(制)。
no-modulation 无调谐
frequency modulation phase modulation 调频调相
absorbing modulation 吸收调制
absorption modulation 吸收灯; 吸收调制
acoustooptic modulation 声光调制
adaptive modulation 自适应调制
admittance modulation 导纳调制
af modulation 音频调制
aliasing modulation 混叠调制
alternation modulation 交变调制
amount of modulation 调制率, 调制度百分数
amplifier modulation 放大器调制
amplitude modulation 【无线电】振幅调制。

"查查词典"手机版

千万人都在用的超大词汇词典翻译APP

例句与用法

Take the hoc based blind modulation detection algorithm as an example, the relationship between the blind modulation detection algorithm and synchronization is investigated . an unproved detection algorithm robust to frequency offset is proposed which solves the problem caused by the error in carrier synchronization . how to synchronize a received signal with unknown modulation type is studied and a blind algorithm to estimate symbol timing of the signals with unknown modulation type is presented
研究了载波同步和码元定时同步与调制方式盲检测算法的关系；以自适应单载波中高阶累积量调制方式盲检测算法为例，对于载波同步误差引起的频偏问题，提出一种基于频偏稳健的mdpsk信号调制方式盲检测算法；对于未知调制方式信号的定时同步问题，提出一种盲定时估计算法，该算法可以估计mdpsk和mqam信号的定时同步信息，实现数字信号的同步分类；提出了一种基于调制方式盲检测的自适应接收机结构，把调制方式盲检测，信噪比估计和同步解调联合起来进行，实现调制方式随信道质量而自适应变化的信号的正确接收。
Take the hoc based blind modulation detection algorithm as an example, the relationship between the blind modulation detection algorithm and synchronization is investigated . an unproved detection algorithm robust to frequency offset is proposed which solves the problem caused by the error in carrier synchronization . how to synchronize a received signal with unknown modulation type is studied and a blind algorithm to estimate symbol timing of the signals with unknown modulation type is presented
研究了载波同步和码元定时同步与调制方式盲检测算法的关系；以自适应单载波中高阶累积量调制方式盲检测算法为例，对于载波同步误差引起的频偏问题，提出一种基于频偏稳健的mdpsk信号调制方式盲检测算法；对于未知调制方式信号的定时同步问题，提出一种盲定时估计算法，该算法可以估计mdpsk和mqam信号的定时同步信息，实现数字信号的同步分类；提出了一种基于调制方式盲检测的自适应接收机结构，把调制方式盲检测，信噪比估计和同步解调联合起来进行，实现调制方式随信道质量而自适应变化的信号的正确接收。
The so-called automatic recognition of modulation ( amr ) schemes automatically classifies the modulation types from the samples of received signal by abstracting the related features such as amplitude, frequency, and phase, followed by employing proper recognition algorithms based on the fast digital signal processing techniques and advanced computing technology . the result of amr can be used in the following processing blocks such as demodulation, supervision processing and anti-interference processing and so on
所谓调制类型自动识别(amr)是根据接收信号样本提取出振幅、频率和相位的特征参数，然后借助信号处理技术和计算机快速处理能力，采用合理算法进行处理，从而实现对未知已调波调制类型的自动识别，为后继的解调、监控、抗干扰等处理奠定基础。
Secondly, comparing with the algorithm that was given by english scholars a . k . nandi and e . e . azzouz in 1995, this dissertation presents a modified automatic recognition algorithm of six kind of digital modulation types such as 2ask, 4ask, 2psk, 4psk, 2fsk and 4fsk, which only uses four key features, and has a very great exaltation in the rate of correct recognition and the performance of signal to noise, we puts forward the constitution of the best threshold which is applicable to the signal that changes within the scope of the signal to noise rate ( snr ) from 5db to 30db, and the overall success rate is not lower than 92 % when snr is over 7db
其次,针对1995年英国学者a.k.nandi和e.e.azzouz提出的针对2ask、4ask、2psk、4psk、2fsk和4fsk这六种常用的数字调制信号识别的算法,提出了一种数字信号调制方式识别算法(dmra)的改进算法。该算法仅利用四个特征参数,就可以识别这六种调制方式,而且在调制识别率和信噪比性能上都有了很大的提高,能够在信噪比不低于7db时,对实际信号的识别正确率高于92%。并且提出了最佳门限的设置方法,设置的门限适用于信噪比在5db~30db范围内变化的信号。
Digital receiver and its forepart operational principle are discussed, then methods of instantaneous autorelation, short-time fourier transform, wigner distribution and wavelet analysis are introduced in detail . the advantages and disadvantages and the application range of these algorithms are given . based on the merits of these algorithms, a new method for signal modulation type analysis is presented
本文讨论了数字接收机以及前端的工作过程，然后详细阐述了瞬时自相关、短时傅立叶变换、wd算法、过零检测和小波分析等各种算法在脉内调制分析上的应用，分析了各算法的优缺点，提出一种并行处理模式：即针对不同的信号采用不同的算法对脉内调制信号进行分析。
The automatic identification of the modulation types has been applied to many fields such as source identification, interference identification, radio interception,-electronic countermeasures, etc . the modulation recognizer based on the decision-theoretic approach and the constellation diagram is proposed and the signal's kurtosis is used as the indicator to differentiate the analogue modulation from the digital modulation
通信信号调制类型的自动识别广泛应用于信号确认、干扰辨识、无线电侦听、电子对抗和信号监测等领域。本文提出基于决策论与星座图的综合调制识别器，使用信号的峰度区分调制类型是模拟调制还是数字调制。