正因为输出信号是已知的,所以它能更轻松地处理这样多频率的信号。
Because the outgoing signal is known, it is as easy to process as spread-spectrum signals.
事实上,由于频率较低,在射频接触水平相同的情况下,人体从调频收音机和电视吸收的信号比从基台吸收的信号要多四倍。
In fact, due to their lower frequency, at similar RF exposure levels, the body absorbs up to five times more of the signal from FM radio and television than from base stations.
因为K波段比x波段高2.5倍,由干扰产生的多信道信号频率也要高2.5倍,这极大改善了对慢速和快速移动目标的探测。
Since K-Band frequency is 2.5 times higher than X-Band, the multipath signal generated by an intruder is also 2.5 times higher, vastly improving detection of slow and fast-moving targets.
通过对信号进行基于瞬时自相关的瞬时频率提取的方法对中频信号进行分析、识别,然后可以在FP - GA内部构造一个多通道匹配滤波器对信号进行匹配。
The article analyses the signal through the method of gaining instant frequency on the base of instant correlation, then we can make up a multicenter matching filter in the FPGA.
利用多传感器对切削力和振动信号进行监测,通过频率变换提取切削力特征量,采用小波包分解技术提取振动信号特征量。
Signals of cutting force and vibration are measured with multi-sensor and features in frequency domain and time-frequency domain are extracted by using wavelet package decomposition.
对设计中无失真再现不同频率信号用到的多采样率变换数字信号处理技术进行了研究。
The multirate transform theory is studied here because it is utilized to reconstruct the waveform of different frequencies signals without distortion.
智能天线采用空分多址,利用信号在传播方向上的差别,将同频率、同时隙的信号区分开来。
Smart antenna adopts SDMA, and in terms of the difference of transmission direction, it can distinguish signals of the same frequency and the same time interspace .
针对软件无线电(SDR)技术中的多频段信号带通均匀采样技术,提出了一种能够高效、准确地求解最小采样频率的方法。
An efficient method is presented to find the minimum valid sampling frequency for bandpass sampling of multiband signals in software defined radio (SDR) technology.
方法:根据数字频率合成理论,基于FPGA实现了多频信号源的核心部分。
Method Based on the digital frequency synthesis theory and FPGA, the main part of a multi-frequency signal source is accomplished.
这两种方法既可用于多段线性调频连续波探测回波的积累检测,也可用于多个相参脉冲信号的积累与频率估计。
The new methods can be used in both detection of FMCW echo and frequency estimation of correlative pulse train.
该算法可实现多信号分辨,也可实现对时变频率信号的到达角估计。
The algorithm can resolve multiple signals and applied to signals with time-varying frequency.
小波变换是信号的时间-频率分析方法,它具有多辨分析的特点,它能有效地检测和识别跳频信号,在跳频通信中有极其重要的作用。
To analyze and detect the feature of frequency hopping signal exactly is a crucial prerequisite to carrying out disturbance to follow the track of signal.
不以时间作为采样的基准,而以信号的幅度作为采样的基准,实现了对包含多种频率成分的复杂信号的多采样率。
This method does not use the time variable as reference but is based on the amplitude of the signal. It can get the multirate sampling for complex signals.
分析了空间谱估计中多信号源方向和频率估计中通道失配和阵元互耦导致系统性能下降的机制。
The mechanism of the performance degration for space-frequency spectrum estimation due to ChannelMismatching and Sensor Coupling is analyzed.
介绍了两个可以用于多信号测电子科技大学博士论文频的技术:频率信道化和过零点谱分析。
Two technologies, spectral channelization and spectral analysis with zero crossing that could be both applied to multi-signals, are also introduced.
现代短波通信系统,其信道大多数具有频率的选择性,多径传输产生了信号的相干衰落与符号干扰。
In modern shortwave communication systems, the channels are mostly frequency-selective, multipath transmission causes the coherent attenuation and symbol interference.
它特别适应于频率捷变雷达信号处理中的多卜勒滤波。
It is especially suitable for the Doppler filtering in the signal processing of...
本文基于线性调频脉压信号在时间和多卜勒频率间存在强耦合的事实,提出用移频干扰实现欺骗干扰的方法。
Based on the fact that a chirp radar signal has a strong coupling between time and velocity, a deceptive jamming technique with shift frequency is proposed.
分析结果表明:在多信号输入时,输出功率中确实有输入信号的互调制分量产生,同时可以发现,对于宽频带的行波管,互调制分量对主工作频率输出功率有比较大的影响。
The results show that: when two signals are inputted into TWT, the output power includes the intermodulation components, and the intermodulation components have important effect on broadband TWT.
频率平移电路(172 ~ 188)使得经过带通滤波的若干多通道模拟信号在频域中接邻,而在相邻通道信号之间没有任何保护频带。
A frequency translation circuit (172-188) abuts the multiple channel bandpass filtered analogue signals in the frequency domain without any guard bands between adjacent channel signals.
本文根据多卜勒信号的特点,提出一种分析频率—时间关系的方法,并给出一实际信号的计算结果。
The paper presents a kind of analysis of frequence- time relation according to characteristic of dopller signal and gives calculating results of a practical signal.
通过使用频率缩放器(428)缩放低速抖动信号(420)产生全速抖动 信号(404)的多速抖动信号发生器(216,400)。
A multi-speed jittered signal generator (216,400) that generates a full-speed jittered signal (404) by scaling a low-speed jittered signal (420) using a frequency scaler (428).
定义了特殊的二维四阶时间平均多矩谱来估计信号频率。
Second, a special 2-D the fourth-order time-average moment spectrum is defined to estimate frequency in zero mean multiplicative and additive noise.
介绍了采用多传感器对采煤机的运行状态进行监测,通过小波包对监测信号进行分析,得到其特征频率信息,以达到对其早期故障的预测。
The paper introduces a method of using multisensor to detect running state and using the wavelet packet transform to analyse the signals. In the ends the character frequ…
介绍了采用多传感器对采煤机的运行状态进行监测,通过小波包对监测信号进行分析,得到其特征频率信息,以达到对其早期故障的预测。
The paper introduces a method of using multisensor to detect running state and using the wavelet packet transform to analyse the signals. In the ends the character frequ…
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