1.
Then DCT was implemented on character image, and the watermarking was embedded into the block middle-frequency and low-frequency DCT coefficients.
然后对特征图像作离散余弦变换,把水印信息嵌入在中低频系数上。
2.
Design of a CMOS Low-IF Active Complex Bandpass Filter
CMOS低中频有源复数带通滤波器设计
3.
An Algorithm of the Adaptive Digital Audio Watermarking Based on Wavelet Domain;
基于小波域低频系数的自适应数字音频水印算法
4.
Design of Analog-to-Digital Converter for Low-IF Digital Receiver
低中频数字接收机的模数转换器的设计
5.
The Application of the Prony Method in Restraint the Low Frequency Oscillation of Power System;
PRONY在电力系统低频振荡控制中的应用
6.
Design of HF Spread Spectrum Communication System Based on Moderate-Low Speed
基于中低速率短波扩频通信系统设计
7.
Detection of the Dominant Inertial Modes Based on Wavelet Energy Coefficient
基于小波能量系数的主导低频振荡模式检测
8.
Measurement of the attenuation coefficient of surface acoustic wave by means of the light diffraction
衍射法测量低频液体表面波的衰减系数
9.
AC Electric Parameter Measuring System Digital Sampling Method Realized with Digital Lowpass Filter;
用数字低通滤波器实现数字采样法的工频电参数测量系统
10.
Design and Implementation of All Digital Low Intermediate Frequency Transceiver Using DSP;
基于DSP的全数字低中频收发机的设计与实现
11.
The Application of Adaptive IIR Low Pass Digital Filters in Frequency Measurement
自适应IIR低通数字滤波器在频率测量中的应用
12.
Design of Logarithmic IF Receiver Based on AD608
基于AD608芯片的对数中频低功耗接收机设计
13.
The RF Signal Analysis of GSM Mobile Telephone and the Hardware Design on the Basis of Digital Low IF Technology;
GSM射频信号分析及基于数字低中频技术的硬件设计
14.
"bandwidth:The numerical difference between the upper and lower frequencies of a band of electromagnetic radiation, especially an assigned range of radio frequencies."
带宽:电磁辐射频带中高频与低频之间的数值差,尤指某设定的无线电频率范围。
15.
The numerical difference between the upper and lower frequencies of a band of electromagnetic radiation, especially an assigned range of radio frequencies.
带宽电磁辐射频带中高频与低频之间的数值差，尤指某设定的无线电频率范围
16.
low data rate UHF satellite
低数据率特高频卫星
17.
Study on Data Acquisition and Parameter Matching System of Low Frequency Vibration Tapping
低频振动攻丝控制与数据采集及参数匹配系统研究
18.
Research for Digital Intermediate Frequency Receiving Technology in DSSS Communication System;
扩频通信系统中频数字化接收技术的研究