finite-element_de

认知无线电技术是当前缓解频谱资源紧张的有效解决方案，频谱感知是认知无线电的关键技术，其中，能量检测是经典的频谱感知算法，对于研究频谱感知的初学者来说比较重要。(Cognitive radio technology is an effective solution to alleviate the tension of spectrum resources. Spectrum sensing is the key technology of cognitive radio. Among them, energy detection is a classical spectrum sensing algorithm, which is important for the study of spectrum-aware beginners.)

说明：  iris recognition paper using func. in matlab

说明：  可以很好的对图像数据进行前处理，能对扫频数据进行分类。(Can be a good pre-processing the image data, can sweep data classification.)

说明：  Stockwell Transform Reference is Localization of the Complex Spectrum: The S Transform IEEE Transactions on Signal Processing, vol. 44., number 4, April 1996, pages 998-1001.

Comparison of the performances of the LS and the MMSE channel estimators for a 64 sub carrier OFDM system based on the parameter of Mean square erro

2DPSK（差分编码调制）调制与解调。用matlab实现(2DPSK (differentially encoded modulation) modulation and demodulation. Using matlab)

串口编程，串口在GUI设计中的应用，用于RS232、RS422之间的通信(Serial programming, the serial port in the GUI design for RS232, RS422 communication between)

foramting sofetare to format our systems the windows

Merge image in matlab(Background sub in matlab)

Filter Dialog extends J Dialog Source Code for Andriod.