查询词典 low pass filter

The experimental results indicate that it is robust to the attack such as mp3 loss compression, low pass filter, resample and so on.

但由于采用扩频调制后，一个水印信息要用一个周期的伪随机序列调制，因此会增加嵌入的水印量。

It can detect the index of human balance function with scatheless convenient safe means. The system circuit of the device contains a RC low-pass filter, which is able to eliminate interferential thin lines and thus improve the function of magnifying signal.

该系统的电路中还引用了RC低通滤波器有效的消除细纹干扰，改善放大信号的功能，完全可以达到无创、便捷、安全地完成人体平衡功能指数的检测。

In one embodiment, the signal is produced by spectrally filtering with a low pass filter, with the cross-over frequency being adjustable.

在一个实施方案中，用低通滤波器通过频谱滤波产生信号，该信号具有可调节的交叉频率。

Including the low-pass filter circuit and Operation Transconductance Amplifier circuit design.

包括低通滤波电路，跨导运算放大电路电路的设计。

The preparation of matlab trapezoidal low-pass filter and image of the effect of drawing the contrast to compare before and after filtering Fig.

详细说明： matlab编写的梯形低通滤波器对与图像的影响，画图比较滤波前后的对比图。

Bilinear Z transform with the design of IIR Butterworth digital low-pass filter, ECG can be achieved in the removal of random noise.

详细说明：用双线性Z变换法设计IIR巴特沃思型数字低通滤波器，能够实现心电信号中随机噪声的去除。

E. ,1. When s tends to infinity, the function tends to zero , so that is a low-pass filter.

E。 ，1。当s趋向到无限时，作用趋向到零，因此是一台低通滤波器。

It used frequency spectrum of analysis and low-pass filter to calculate the motor s rotative velocity from the vibration signals collected on site.

根据某大型电机在线监测诊断系统的具体情况，在开发在线振动监测系统的过程中综合应用频谱分析、低通滤波等方法，从实测振动信号中精确计算了主轴转速的大小。

The whole PWM circuit contains two subcircuit, the front-end is PWM module that make up of the counter that based on nine MOSFET True-Single-Phase-Clock D flip-flop; the back-end is demodulated module, which is consist of a three order Chebyshev low-pass filter used trans-conductor capacitor. All the subcircuits are simulated. At last, an approving simulated result of the whole circuit is given too.

在调制部分，利用九管单相时钟D触发器构成计数器，并由此组成了脉冲宽度调制电路，同时给出了在典型温度下的仿真结果；在解调部分，介绍了低通滤波器从无源到有源的设计方法，设计了三阶切比雪夫低通跨导电容滤波器，同样给出了相应的仿真结果；最后，作为将脉冲宽度调制电路和滤波器作为整体电路，以脉冲调频波为输入进行了仿真，取得了令人满意的结果。

From point of view of Fourier theory, an optical system behaves as a low-pass filter which debars spatial frequency information about the object beyond the diffraction limit cut-off frequency.

按照傅立叶光学的观点光学系统是一个低通滤波器，其传递函数在由衍射极限分辨力所决定的截止频率以上值均为零，因此图像截止频率以上的能量和信息被丢失。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。