4-10

作为学习的资料，这是我学习c语言的一些重要记录(Information for learning, this is my c language learning some of the important records)

使用C++实现的小程序。计时器单位转换。输入为整型数单位为秒，输出格式为DDD：HH：MM：SS的时间。华为机试。(Use C++ achieve applet. Timer unit conversion. Enter an integer number of seconds, the output format is DDD: HH: MM: SS time. Huawei machine again.)

初始对准技术是惯性导航系统的关键技术之一，初始对准的快速性和精度直 接关系到捷联惯导系统的性能。论文以罗经对准方法在捷联惯导系统中的应用为 目的，深入地进行了理论、实验和应用研究。 理论上，由捷联式惯导系统误差模型开始，结合罗经对准原理，建立罗经对 准数学模型。在此基础上，设计算法和控制流程，并依据控制理论选择适当的控 制参数。 在理论分析之后，针对可能出现的多种外界条件进行模拟数据仿真实验验证 算法和参数选择的正确性。仿真实验结果表明:在SOOs内系统对准精度达到0.10 并目_适用十高纬度地区。 车载试验数据离线分析，试验中使用GPS测得的速度信息作为外测参考速 度信息，在车辆运动过程中对准系统保持工作状态。将导航解算得到的结果与 GPS测得的信息进行比较分析，导航精度与GPS精度相当，即速度精度0.2m/s 水平位置精度lOmo (StudyongyrocompassAlignmentforSINS)

这个是工程师应该掌握的20个电路，希望大家可以了解参考一下，谢谢！(This is the engineer should master 20 circuit, I hope you can understand the reference, thank you!)

黑客与画家，高清扫描版pdf，中文版，是一本不错的计算机专业书籍(Hackers and Painters, HD scan version pdf, Chinese version, is a good computer science books)

这是清华版c＋＋程序设计 第四章课后题第10题(This is the Tsinghua version c Program Design Chapter IV title after title No. 10)

Csdn刷下载积分工具,请慎重使用.后果自负(Csdn brush tool to download Points)

该书是一本通信对抗专业的实用参考书。系统地介绍了现代抗干扰通信技术(主要是直接序列扩谱和跳频扩谱)和抗干扰通信的检测技术，讨论了每一种基本抗干扰信号类型的干扰技术，包括干扰直接序列扩谱信号、干扰快跳频扩谱信号、干扰慢跳频扩谱信号和干扰直接序列扩谱/跳频扩谱混合信号。该书的读者对象是电子战和通信对抗领域的工程师和科技工作者，也可供通信领域的科技工作者参考。(Content HighlightsAnti-Jam Communications and Electronic Countermeasures. Radio Frequency Propagation. Signaling for AJ Communications. Jamming Techniques. Anti-Jam Signal Detection. Jamming Direct Sequence Spread Spectrum Systems. Jamming Fast Frequency Hopping Systems. Jamming Slow Frequency Hopping Systems. Jamming Hybrid Spread Spectrum Systems.)

一本非常NB的关于计算机的离散数学与应用书籍！(Discrete Mathematics and its Applications is a focused introduction to the primary themes in a discrete mathematics course, as introduced through extensive applications, expansive discussion, and detailed exercise sets. These themes include mathematical reasoning, combinatorial analysis, discrete structures, algorithmic thinking, and enhanced problem-solving skills through modeling. Its intent is to demonstrate the relevance and practicality of discrete mathematics to all students. The Fifth Edition includes a more thorough and linear presentation of logic, proof types and proof writing, and mathematical reasoning. This enhanced coverage will provide students with a solid understanding of the material as it relates to their immediate field of study and other relevant subjects. The inclusion of applications and examples to key topics has been significantly addressed to add clarity to every subject. True to the Fourth Edition, the text-specific web site supplements the subject matter i)

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)