FocusAfterRemovalTest

说明：  基于数字全息和离散余弦变换的数字水印技术(Digital watermarking technology based on digital holography and discrete cosine transform)

说明：  有关红外线通讯的详细协议，有助于熟悉该协议(Details of the infrared communication protocol, help to familiarize themselves with the agreement)

C和C++程序员面试秘笈，解析C/C++面试题的书，可以帮助求职者更好地准备面试(C and C++ programmer interview tips, analytical C/C++ face questions of the book, can help candidates better prepare for interview)

信号与系统，（第二版）奥本海姆著 刘树棠译 西安交通大学出版社 2001，非常经典的教材，建议大家看一下(Signals and Systems, (Second Edition) Oppenheim Liu Shutang translation of Xi' an Jiaotong University Press, 2001, is a classic textbook, suggested we look at)

说明：  包含内容：离散时间系统与Z变换、离散傅里叶变换及其快速算法、无限长单位脉冲响应(IIR)滤波器的设计、有限长单位脉冲响应(FIR)滤波器的设计、数字信号处理系统的实现、多采样率信号处理(singal processing and demo program)

数值计算方法 作者：陈忠 总页数：340 配有丰富习题(Numerical method Author: Chen)

说明：  python flask advance

一本对于学习超声系统很有帮助的书，可以方便的查阅和理解。书中对于各类的超声例如医学超声，工业超声都有说明。(A book that is very helpful for the learning of ultrasonic systems can be easily consulted and understood. All kinds of ultrasound, such as medical ultrasound and industrial ultrasound are described in the book.)

关于计算机维修的心得，写上来看，不容易啊。对维修很有指导作用(maintenance on the computer experience, to write, Burongyia. Useful guide to the maintenance role)

对于学习信息论的各位朋友们帮助很大，精炼易懂(It is very helpful for those who study information theory,it is Refining and easy to understand. )