The single-channel low light level imaging system based on broad band tuned filter is further deepening of the color night vision imaging .

基于宽波段 调谐 滤波的双谱微光单通道彩色夜视技术是对彩色夜视理论与技术研究的进一步深化，是解决单通道实现彩色微光成像的一种新的技术手段。

This thesis analyses the characteristic of single tuned filter and high pass filter puts forward some design ideas of filter and gives some examples .

对单 调谐 滤波器及二阶高通滤波器的 阻抗- 频率特性进行分析，提出一些滤波器的设计观点，并举例说明。

With the continuously adjustable center frequency rapid tuning small size and low cost the tuned filter based on varactor is wildly applied to frequency-hopping communications .

基于变容二极管的 跳频 滤波器其中心频率连续可调，跳频速度很快，体积小，成本低，在跳频通信中被广泛使用。

Tuned Power Filter With Optimal Tuned Frequency

电力 调谐 滤波器的最佳偏调谐设计

Characteristic analysis of double tuned filter in HVDC systems

高压直流输电系统双 调谐 滤波器特性研究

First of all the algorithm of the parameters of the single tuned filter are presented .

首先给出单 调谐 滤波器参数计算的方法和精确公式。

Study on the Double Tuned Filter Based on Splitted-core Type Controllable Reactor

基于裂芯式可控电抗器双 调谐 滤波器研究

There-fore the basic Characteristic of the self & tuned filter is improved completely .

从而完善了自 调谐 滤波器的基本特性。

An example of the double tuned filter in a HVDC project is calculated . Calculation results show that the definition put forward in this paper is useful in the parameter design of double tuned filters .

并对某HVDC工程所采用的 直流 滤波器进行了计算，计算结果表明所提出的定义可以为双调谐滤波器的参数设计提供工程指导。

Moreover a gain-tunable current-mode continuous-time integrator is presented . Both fp and Q can be tuned with the filter based on the integrator .

在此基础上，提出了增益可 调型电流模式连续时间积分器，用这种积分器实现的 滤波器能实现fp和Q的双 调控。

Algorithm for the Parameters of Double Tuned Filter and the Third Order Filter

双 调谐 滤波器和三阶滤波器的参数计算

In this paper the fundamentals and features of the stub multicoupler the tuned trap multicoupler the parallel filter multicoupler and the fixed impedance multicoupler are briefly analysed .

简要分析了短截传输多路耦合器、陷波多路耦合器、并接 滤波多路耦合器及定阻抗多路 耦合器的基本原理及其特点，给出了定阻抗多路耦合器的设计实例。

We have made a varactor tuned bandpass filter and got a good agreement between the measured and theoretical results .

制作了二级变容管 调谐微带环形谐振器的带通 滤波器，实验结果和理论吻合较好。

It has become one of the most important research focuses on modification Tuned AC filter and achieving the purpose of automatic and continuously multi-tuning .

因此，对交流 调谐 滤波器进行改造并且实现自动连续多调谐成为谐波滤波器研究的方向之一。

Development of Tuned AC Filter

交流 调谐 滤波器的进展

The novel power filter consists of the well tuned LC passive filter the additional inductor and the active power filter ( APF ) which is controlled as a harmonic current source .

它由 纯 调谐LC无源 滤波器、附加电感和有源电力滤波器（APF）构成，APF控制成谐波电流源。

The principle and the inherent demerits of tuned AC filter are discussed the detuning due to variation of filter parameters is the main cause of deterioration of filtering performance .

论述了交流 调谐 滤波器的工作原理和固有缺点，说明滤波器参数变化所引起的失谐是导致滤波性能恶化的主要原因。

This paper focuses on the studies of four different structural types of tunable filter based on varactor . Firstly according to the principal of coupled resonator filter a RF LC tuned filter is designed .

本文重点研究了基于变容二极管的四种不同结构类型的 跳频 滤波器。

Self - Tuned Filter

自 调谐 滤波器

Filter modules are consist of automatic tuning electronic filter the problems need to be solved is the short period of electronic tuned filter the period is less than 100 us to ensure the good frequency variable speed .

其中抗干扰滤波模块由带有自动调谐功能的电子调谐滤波器组成，需要解决的问题是电子 调谐 滤波器 调谐短周期的问题，其周期要小于100us，以保证速度满足频率捷变的要求。

Using superheterodyne second frequency conversion this module receiver design is composed of LNA tuned filter mixer IF amplifier circuit and AGC control circuit to implement large dynamic range receive technical criteria .

本模块接收机设计采用超外差二次变频，主要由低噪声放大器、 调谐 滤波器、混频器、中放电路和AGC控制电路等几部分组成，实现了大动态范围接收技术指标。

Although Tuned AC filter still has an irreplaceable status in the high-voltage and high-capacity systems it has many inherent demerits which restrict its development such as detuning problem and single LC branch only can mitigate single harmonic .

在高电压、大容量系统中交流 调谐 滤波器仍占有无可替代的地位，但失谐问题及单个LC支路滤波特性单一等缺点制约了其发展。

Single tuned filter based on controllable reactor

基于可控电抗器的单 调谐 滤波器

For these reasons the tuned filter must be used when the reactive compensation is done at the existing of system harmonic so as to fulfill the following tasks : do reactive .

单 调谐 滤波器为容性，而 中频电炉工作一般功率因数较高，因此对中频电炉的谐波治理，应兼顾滤波与无功功率补偿。

Research on Continuously Tuned Power Filter

交流连续 可 调 滤波器的研究

This paper studies and designs a single tuned filter based on a controllable reactor it could filter odd harmonics such as 3rd or 5th or 7th and so on .

本文研究并设计了一种基于可控电抗器的单 调谐 滤波器，可用于对单次谐波如3次、5次或7次谐波的滤除。

Analysis of single tuned filter and high pass filter

单 调谐 滤波器及二阶高通滤波器的设计分析

Study on parameters of double tuned filter in HVDC transmission system and its simulation

高压直流输电系统中双 调谐 滤波器参数研究及其仿真

Research on the Adaptive Multi - Tuned Power Filter

自适应多 调谐 滤波器的研究