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dct
- JPEG压缩算法的核心是“视觉保真”原理，利用人类视觉系统特征进行处理，以达到最大图像数据压缩效果，实际上就是去除那些人眼不易觉察的信息。图像的空间频率对人的视觉至关重要，采用离散余弦变换可将图像分解成一组波，每个波有一个不同的空间频率，这样可以去除人类眼睛觉察不到的信息，而且还可使系统只保留重要的信息。-JPEG compression algorithm is the core of " visual fidelity" principle, the use of the
lambwavedispersioncurve
- lamb wave dispersion curve matlab program . some useful process may help u solve something about ultrasonics in the solid media and give me some suggestion after u read it. thank you!
asias_dds
- 一个简易的信号源，具有多种波形发生功能还有扫频，调制，频率计等相关功能-My project is on Direct Digital Synthesiser using Verilog HDL.This project is doing by me on july 2009 in summer training at NIT Kurukshetra, India. This DDS system generate the square wave, Triangular wave,Sine wa
20091106020649204
- 全互换性 在标准环境下不需校正 长时间饱和下快速脱湿 可以自动化焊接，包括波峰焊或水浸 高可靠性与长时间稳定性 专利的固态聚合物结构 可用于线性电压或频率输出回炉 快速反应时间 -Full interchangeability without calibration in the standard environment for rapid removal of moisture saturation time can be automated weldi
HSDCTcode
- 心音信号的DCT域变换压缩编码，LLoyld最佳量化与霍夫曼编码，利用心电R波进行分帧，在不到1 左右失真度的情况下达到了6.0以上的压缩比-Heart sound signals on DCT transform coding, LLoyld optimal quantization and Huffman coding, the use of ECG R wave sub-frame, less than about 1 in the case of distortion to achie
Anversion
- A simple multi-band QPSK signal transmission scheme, constructed by using an optical remote up-conversion technique and a Schottky diode RF detector, is theoretically analyzed and experimentally implemented in a 60-GHz millimeter wave (mm-wave) r