This paper presents a design of Adaptive-Bandwidth Frequency Synthesizers used in single chip FM receiver system.
本文介绍了应用在单芯片FM接收系统中可变带宽频率综合器的设计。
For fast and accurate design and production of lumped constant bandwidth frequency-hopping(FH) narrowband filter, a load structure changing with frequency is introduced.
为了快速准确地设计并制作恒带宽窄带集总跳频滤波器，提出了一种随频率变化而 变化的负载结构。
The 802.11g standard is a non-straightforward extension of 802.11b; its purpose is to increase bandwidth on the same frequency.
11g标准是802.11b非直接扩展；它的目的是在频率不变的条件下增加带宽。
The radio provides interoperability and compatibility with IP-based systems and has an extended radio-frequency range and narrow-frequency bandwidth operating modes.
电台提供可以与基于IP的系统的互操作和兼容，并已扩大电台频率范围和窄频带宽操作模式。
The radio offers interoperability and compatibility with Internet Protocol-based systems and has an extended radio-frequency range and narrow-frequency bandwidth operating modes.
该电台兼容基于互联网协议的系统，可进行互操作，拥有扩展无线电频率范围和窄频带操作模式。
The SNEP will employ the MPM1000 Net Centric Waveform Satellite Modem to provide Multi-Frequency-Time Division Multiple Access Bandwidth on demand technology for tactical mobile operations.
该SNEP将采用MPM1000网络中心波形卫星调制解调器，为战术机动作战提供所需的多频时分多址接入带宽技术。
The radio offers seamless interoperability and compatibility with Internet Protocol-based systems and has an extended radio-frequency range and narrow-frequency bandwidth operating modes.
无线电台提供了与互联网协议为基础的系统无缝链接的互操作性和兼容性，并拥有扩展的无线电频率范围和窄带操作模式。
The selection of measurement bandwidth in time domain frequency stability is discussed.
讨论了频率稳定度时域测量带宽如何选择的问题。
Johnson noise is uniformly distributed over a wide frequency range, so reducing the noise bandwidth effectively decreases the noise in the measurement.
约翰逊噪声在很宽的频率范围内呈均匀分布，所以减小噪声带宽能够有效地降低测量中的噪声。
The essential difference is that the spectrum analyzer, being designed for laboratory use, is designed to cover an extremely wide frequency range with widely adjustable tuning range, bandwidth, etc.
区别在于频谱分析仪被设计成是实验室使用，设计成是带有很大可调范围和带宽等并覆盖非常大频率范围的仪器。
Two parameters are used to specify the characteristics of a BPF: passband centre frequency and resonance bandwidth.
带通滤波器的特性通过两个参数表示：带通中心频率和共鸣带宽。
In these cases, filters can be added to the switch to modify the signal frequency bandwidth, or spurious signals at unwanted fre quencies can be eliminated from the signal to the DUT.
在这些情况下，可向开关加入滤波器来改变信号的频率带宽，或者从发射到DUT的信号中消除有害频率的杂散信号。
The entire available frequency spectrum is used with 79 hops of 1mhz bandwidth, analogous to the IEEE 802.11 standard.
以1M hz带宽79跳来利用这个完整的可用频谱。
The result showed that the analyzer has wide input frequency range, narrow RBW (Resolution Bandwidth) and high scanning accuracy, and it reaches the international advanced level.
测试结果表明所设计的分析仪输入频带宽、频率分辨力和扫频准确度高，达到国际同类产品先进水平。
The relationship shows that the maximum bandwidth is limited for these algorithms and becomes narrow when the center frequency is lower and the imaging squint angle is larger.
这种关系表明雷达可用的信号带宽是有一定限制的，随着工作频率的下降和成像斜角的增大，可用的信号带宽会变得越来越小。
This system can utilize the transmission bandwidth more efficiently and achieve frequency diversity.
这种系统能更有效地利用传输带宽，实现频率分集。
In order to obtain enough bandwidth, HF radars use an irregularly frequency modulated waveform.
为了获得足够的带宽，雷达采用一种非规则频率调制的波形。
First, there is one band of parametric eq with adjustable frequency, gain and bandwidth.
首先，有一个波段的参数均衡器调节频率，增益和带宽。
The rise time and bandwidth, the former term is the time domain, frequency domain, which is the term, they are closely linked.
而上升时间和带宽，前者是时域中的术语，后者是频域中的术语，它们是紧密联系的。
By comparative analysis, the dependence of the resonant frequency, voltage standing wave ratio, bandwidth and input resistance on different geometric parameters is obtained.
通过比较分析，得到了天线谐振频率、谐振点电压驻波比、带宽以及输入阻抗随不同几何参数的变化规律。
This time, if you have understood, the soul has the strength of radio frequency of a certain bandwidth and strength and if you tune to it, you listen to it, it will tell you the whole story.
这一次，如果你们听懂了的话，灵魂具有特定带宽的无线电波频率的场强，如果你调节到那个频率，收听它，它就会告诉你所有的事情。
The approach is relatively simple and can be used to design the filters with specific notch frequency and bandwidth.
在给定槽口频率和带宽的滤波器的设计中，该方法不仅可行而且简单。
Compared to the theory signal, the chirp produced by DDS under large bandwidth, may have frequency distortion due to the limited chirp-rate.
受限于DDS芯片的调频转换速率，在大带宽下，DDS产生的线性调频信号相比理论信号可能存在频率失真。
The thesis plans improving frequency estimation accuracy, without changing the bandwidth of the transmitted signal. So, we can improve the range estimation accuracy.
因此，本文拟在不改变扫频带宽的前提下提高频率估计精度从而提高距离测量精度。
By utilizing two field regions with stronger EM field intensity, the pentagon antenna has not only higher EM intensity, but also over twenty times frequency bandwidth.
五边形天线合理利用了两个超宽强场区，使该天线不仅有高而平稳的场强而且能轻易达到二十倍频以上带宽。
The switching solution should have as a minimum the bandwidth of the DUT, and preferably equal to the bandwidth of any higher frequency source and measurement equipment.
切换方案的最小带宽应该为DUT的带宽，最好是等于任何高频源和测量设备的带宽。
The center frequency and bandwidth of Y-aperture are much more influenced by the substrate thickness change than those of Y-loop element FSS.
介质厚度的变化对Y孔中心频率、带宽的影响要比Y环单元FSS的大得多。
Its realization is summarized, characteristic parameters such as reflection, transmission, absorption, bandwidth and optimal frequency responding to different function are also analyzed and computed.
简要概述了其实现方法，并对其反射、透射、吸收、工作带宽和最佳工作频率等特性参数进行了分析与计算。
The relative waveforms, such as maximum frequency, mean frequency and bandwidth, were obtained using the short time Fourier analysis of those simulated signals.
对这些仿真信号进行短时傅里叶分析，求出相应的最大频率、平均频率和频谱宽度等曲线。
The relative waveforms, such as maximum frequency, mean frequency and bandwidth, were obtained using the short time Fourier analysis of those simulated signals.
对这些仿真信号进行短时傅里叶分析，求出相应的最大频率、平均频率和频谱宽度等曲线。
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