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说明：  PQ分解的典型例程，非常适用于初学者及专业人士参考学习(PQ decomposition typical routines, very suitable for beginners and professionals refer to learning)

说明：  以航标、测绘和通信为主的三大板块，是我国水上交通安全保障体系的重要组成部分，承担 着船舶航行的技术支持和航运经济的服务保障职能，对我国水上交通安全形势的持续稳定发挥了 不可替代的重要作用。从上世纪七、八十年代起，随着我国水上交通安全监督体制改革的逐步深 入，航标、测绘、通信等机构先后经历了数次体制改革、机构变化和职责调整，逐步建立了具有 中国特色的航海保障体系。 (To buoy, mapping and communication of the three main sections, is an important part of water transportation security system, technical support and bear the shipping service guarantee economic functions of the ship sailing on a steady water traffic safety situation in our country to play an irreplaceable important role. From the 1970s, since the 1980s, with the gradual deepening of China' s reform of water traffic safety supervision, aids to navigation, mapping, communications and other institutions have experienced several reforms, institutional change and responsibilities adjustment, gradually established with Chinese characteristics maritime security system.)

说明：  扩张状态观测器，用来观测系统状态以及干扰量，设计前馈补偿量进行系统矫正(State Observation Using Extended State Observer)

说明：  OFDM是将高速串行数据分成成百上千路并行数据,并分别对不同的载频进行调制,这种并行传输体制大大扩展了符号的脉冲宽度,提高了抗多径衰落的性能。同时,在传统的频分复用方法中,各子载波之间的频谱互不重叠,频谱利用率较低。而采用OFDM技术,一个OFDM符号之内包括多个经过调制的子载波的合成信号,每个子载波在频谱上相互重叠,这些频谱在整个符号周期内满足正交性,因而在接受端可以保证无失真恢复,从而大大提高频谱利用率。(OFDM divides high-speed serial data into hundreds of parallel data channels and modulates different carrier frequency separately. This parallel transmission system greatly expands the pulse width of symbols and improves the performance of anti-multipath fading. At the same time, in the traditional method of Frequency Division multiplexing, the spectrum between the sub-carriers does not overlap each other, the spectrum utilization ratio is low. In the case of OFDM, an OFDM symbol consists of multiple modulated sub-carriers, each of which overlaps in the spectrum, which is orthogonal throughout the symbol period, thus, no distortion recovery can be ensured at the receiving end, thus greatly improving the spectrum utilization ratio.)

MICROSOFT FOCUS COBOL VERSION 3.0 COMPILER

to search centroid from image

对海杂波背景实测数据进行基于云模型的分割(Background on measured sea clutter data segmentation based on cloud model)

关于无人动力伞的matlab数学模型建立，以及无人动力伞的控制研究。(unmanned paramotor on the matlab mathematical modeling, and control of unmanned paramotor.)

matlab simulink implementation and analysis of Three-phase inverter2

power system stability with and without PSS yu power system stability book example