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- The signal processing system consists of a band pass filter(BPF) with center frequency of 2.856 GHz and bandwidth of 10 MHz,a logarithmic detector,a analog digital converting module,and a data acquisition program based on Labview. 带通滤波器选用中心频率为2.;856 GHz、带宽为10 MHz的腔体滤波器;对数检波模块采用对数放大器AD8313芯片;模数转换模块采用NI公司的PXI-5102;上位机的数据采集程序采用Labview编写。
- The duplexer acts as a very broad band pass filter during receiving mode and the prearnp is a low noise wide band-width amplifer that is used to amplify the echo signals. 调谐电路对系统共振频率的漂移进行实时调谐,针对以上天线和模拟电路的功能,对天线和模拟电路进行了设计。
- Low pass filter is used to filter PWM frequency on the BEMF signal. 通常使用低通滤波器来滤除PWM波对反电动势的影响。
- Low pass filter and mean filter fail to eliminate the diversities. 通过引入脉动假设,对信号的差异进行了分析。
- The Cascade integrator comb filter (CIC) has played an important role as an interpolating and low pass filter in the Digital Down Converter (DDC) of software radio. 在软件无线电的下变频模块中,级联梳状积分滤波器有着重要的应用,其主要作用是信号的抽取与低通滤波。
- By modeling the 2-finger FET into CPW, the on-state millimeter-wave traveling wave switches are equivalent to the step impedance band pass filter and the design procedure is obtained. 因为二指场效电晶体可以等效于共面波导,所以行波切换器的设计就等效于步阶阻抗低通滤波器。有关细部设计流程也包含于本论文中。
- First,a finite impulse respond(FIR) band pass filter is designed based on Chebyshev approximation method,and then the windowed impulse response is used to adjust energy distribution of signal. 本文针对极窄脉冲超宽带自导信号,提出了一种基于滤波器的设计方法,首先按照切比雪夫近似方法设计有限脉冲响应(FIR)带通滤波器,然后将滤波器冲激响应做加窗处理来调节信号能量分布。
- It is used main for ferroelectric , piezoelectricity,electro-optic and nonlinear optical.It is made up the broad frequency band,modulator,high stabeness resonator and band pass filter etc. 主要用于铁电、压电、电光和非线性光学,可制作宽频带、调制器、高稳定性谐振器和带通滤玻器等。
- Interference signals can be reduced by means of the input low pass filter. 输入低通滤波器能减少干扰信号。
- This paper give an example to design and simulate FIR low pass filter with VHDL and MATLAB application combining, and points out VHDL and MATLAB are both powerful tools in Digital filter design. 本文基于MATLAB和VHDL的应用结合,通过实例实现FIR低通滤波器的设计和仿真,指出MATLAB和VHDL是数字滤波器设计的两项强有力设计工具。
- H-plane T-junction and E-plane transverse iris band pass filters are used in the diplexer structure. 双工器采用H面T接头和E面横向膜片波导带通滤波器。
- The system utilizes a Supersonic Wave Filter positioned in front of the CCD, between the low pass filter and the shutter. 不是抖低通,低通抖不得。超声波滤镜是安装在快门后面,低通前面的单独机构!
- Band Pass Filter use for Broadcasting Station 电台专用带通滤波器
- One of them detects R wave usingband pass filter which can removeT wave baseline and muscle arti-facts. 一种基于带通滤波器的电子线路能有效地抑制T波和肌电干扰,去除基线漂移,正确检出R波。
- Then, a practical 50 Hz band pass filter is proposed, which is modulated with one cycle Bartlett window and in performances better than the classical filters adopting one cyclic Fourier algorithm. 提出了一种具有实用价值的由一周波三角窗调制实现的50Hz带通滤波器。
- Three-order low pass filter is implemented by one order Sallen-Key circuit and two-order Sallen-Key circuit. 三阶的低通滤波器使用一个一阶Sallen-Key电路串联一个二阶Sallen-Key电路来达成。
- The CCD signal preamp with low pass filter is used to minimize the readout noise. 通过使用带低通滤波器的前置放大器降低了读出噪音,研究了读出噪音与读出速度的关系。
- The SI low pass filter is simulated using ASIZ and verified to be able to meet the needs of time-domain CWT. 对开关电流低通滤波器用ASIZ进行仿真,结果证实其性能完全满足实用要求。
- ultra-wideband ( UWB ) band pass filter ( BPF ) 超宽带带通滤波器
- sound surface wave band pass filter 声表面波带通滤波器