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宇宙发展史及其天体理论ppt 有精美星云照片
宇宙发展史及其天体理论ppt 有精美星云照片-history of the development of the universe and theoretical astrophysics ppt photos are exquisitely Nebula
- 2022-07-10 02:03:49下载
- 积分：1
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讲述操作系统的书籍，主要面向与嵌入式系统，作者是WindRiver的高级工程师，结合自己的工程经验讲述嵌入式系统的os的原理和开发中要注意的问题，认真读很有收获...
讲述操作系统的书籍，主要面向与嵌入式系统，作者是WindRiver的高级工程师，结合自己的工程经验讲述嵌入式系统的os的原理和开发中要注意的问题，认真读很有收获。-Books about operating systems, mainly oriented and embedded systems, WindRiver author is a senior engineer, combined with his experience in engineering, embedded systems os about the principle and the development of attention should be paid to the issue of very serious harvest time.
- 2022-04-26 15:59:14下载
- 积分：1
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很好的matlab书籍！供大家学习参考。请同行批评指正！上传更好更高质量的文章。程序和源代码！...
很好的matlab书籍！供大家学习参考。请同行批评指正！上传更好更高质量的文章。程序和源代码！-Matlab good books! Reference for them to learn. Peer criticism please! From the article, higher quality better. Procedures and source code!
- 2023-02-18 08:45:05下载
- 积分：1
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VC++技术内幕，学习VC＋＋必备的书籍
VC++技术内幕，学习VC＋＋必备的书籍-technology, learning VC++ essential books
- 2022-02-05 09:56:48下载
- 积分：1
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本书籍包括所有无线通信系统中的数学模型，内容丰富。
本书籍包括所有无线通信系统中的数学模型，内容丰富。-environmenet of wireless communication
- 2022-06-12 11:35:59下载
- 积分：1
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对IQ接收器最重要的两个参数,即I和Q两路分量之间的幅度一致性和相位正交性,可采
用如下办法计算:把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,...
对IQ接收器最重要的两个参数,即I和Q两路分量之间的幅度一致性和相位正交性,可采
用如下办法计算:把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一
致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比(即频域内的信号与信号镜像的幅度比) ,通过镜像抑制比和幅度一致性,可求出接收机的I和Q两路分量之间的相位正交性。-IQ receiver for the two most important parameters, namely I and Q components of two-way consistency between the amplitude and phase orthogonality may be adopted calculated using the following method: to I, Q 2 signals, respectively for FFT, to find a frequency domain signal amplitude, can be considered as two-way component caused by the range of 1 the I, Q 2 signals into one complex signal for FFT, the spectrum demand of the received image rejection ratio (ie, frequency domain signal and magnitude of the signal mirror ratio), through the image rejection ratio and extent of consistency, the receiver can be derived I and Q phase between the two-way component orthogonality.
- 2022-06-29 08:38:37下载
- 积分：1
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嵌入式C标准研究报告 很好的资料 欢迎下载哦 h
嵌入式C标准研究报告 很好的资料 欢迎下载哦 h-Embedded C standard research reports, information on good welcome to download Oh h
- 2022-01-30 13:14:03下载
- 积分：1
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汇编语言，教你如何编写高效的汇编程序，使你在短时间内成为汇编高手...
汇编语言，教你如何编写高效的汇编程序，使你在短时间内成为汇编高手-computer principle and asm language
- 2022-09-03 02:30:04下载
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Keil自带操作系统的详细配置说明，应用以前必读文件
Keil自带操作系统的详细配置说明，应用以前必读文件-Keil, bringing their operating system shows the detailed configuration, application documents carefully before
- 2022-02-14 17:38:39下载
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详细讲述了windows2000server的开发使用
详细讲述了windows2000server的开发使用-Detailed explanation on the development of the use of windows2000server
- 2022-01-26 05:13:24下载
- 积分：1
