3_6-Ackerman

说明：  实现三次样条差值，与matlab实现的精度一样(Realize the difference between cubic spline, and the precision to achieve the same matlab)

ANTENNA THEORY AND DESIGN Revised Edition Robert S. Elliott University of California Los Angeles, California(First published in 1981, Robert S. Elliott s Antenna Theory and Design is one of the most significant works in electromagnetic theory and applications. In its broad-ranging, analytic treatment, replete with supporting experimental evidence, Antenna Theory and Design conveys fundamental methods of analysis that can be used to predict the electromagnetic behavior of nearly everything that radiates. After more than two decades, it remains a key resource for students, professors, researchers, and engineers who require a comprehensive, in-depth treatment of the subject. In response to requests many of our members, IEEE is now reissuing this classic. Newly revised, it once again will be an invaluable textbook and an enduring reference for practicing engineers. The IEEE Press Series on Electromagnetic Wave Theory offers outstanding coverage of the field. It consists of new titles of contemporary interest as well as reissues and revisions of recognized classics by established authors and rese)

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基于一个二阶线性系统实例，介绍了全程滑模变结构控制，实现了系统的鲁棒性特点。(Global sliding mode variable structure control, based on a second order linear system instance, the robustness of the system characteristics.)

STEINWAY GRAND PIANO V1.2 (082800) LIGHT & BRIGHT VERSION

雷达杂波抑制算法 (Radar clutter suppression algorithm)

QAM PSK 信号的调制星座图代码,实现调制信号的星座图显示和比较(the code of QAM&PSK Signal modulation constellation diagram )

audio card enumerate searching ok. for multimedia developing project. thank you

semivariogram structure function ,it is about 2D semivariogram.

最小二乘法曲线拟合，可以实现利用最小二乘法拟合曲线，并显示图形，操作简单。(Least squares curve fitting, can be achieved using least squares curve fitting and display graphics, easy to operate.)