大师作文网英语翻译一体化接收技术是未来卫星测控领域接收技术的发展趋势,一体化接收技术的应用可以很大程度的缩减测控网成本,减少测控所
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英语翻译
一体化接收技术是未来卫星测控领域接收技术的发展趋势,一体化接收技术的应用可以很大程度的缩减测控网成本,减少测控所需的人力资源,降低测控活动中的人为干预程度,降低人为的误操作、误动作.
随着空间技术的发展和进步,各型号的航天器越来越多,同时通信技术的发展,型号卫星的信号调制类型亦不断发展进步,由于多种调制信号类型的并存,使调制信号的自动识别技术成为一体化接收机开发的关键技术之一.本文在认真分析目前调制类型自动识别方法的基础上,对基于循环谱的调制信号自动识别方法进行了详细的阐述,并对该方法在的识别效果进行了详细的MATLAB仿真,在第三章最后,对循环谱中的SSCA算法,在实际的硬件平台上进行了测试,取得了良好的效果.
分集接收技术在一体化接收机中的应用,可以更好的提高接收信号的信噪比,在测控过程中可以更迅速、更准确的捕获和跟踪目标信号.所以,分集接收技术是一体化接收机开发和实现的另一关键技术.本文的第四部分中,针对分集技术中的主要影响因素：同频同相调整和信噪比估计,进行了详细的分析和讨论.针对目前存在的同频同相方法中存在的缺陷,本文提出了一种基于互相关的同频同相调整方法,较好的解决了调整方法受调制类型限制的问题.在信号的信噪比估计方面,目前多数采用时域的方法,本文在频域上提出了一种采用傅里叶变换进行信噪比估计的方便,该方法思路简单,取得的效果较好,并使用MATLBA,进行了仿真验证.
关键词：一体化,自动识别,互相关,同频同相,信噪比估计
一体化接收技术是未来卫星测控领域接收技术的发展趋势,一体化接收技术的应用可以很大程度的缩减测控网成本,减少测控所需的人力资源,降低测控活动中的人为干预程度,降低人为的误操作、误动作.
随着空间技术的发展和进步,各型号的航天器越来越多,同时通信技术的发展,型号卫星的信号调制类型亦不断发展进步,由于多种调制信号类型的并存,使调制信号的自动识别技术成为一体化接收机开发的关键技术之一.本文在认真分析目前调制类型自动识别方法的基础上,对基于循环谱的调制信号自动识别方法进行了详细的阐述,并对该方法在的识别效果进行了详细的MATLAB仿真,在第三章最后,对循环谱中的SSCA算法,在实际的硬件平台上进行了测试,取得了良好的效果.
分集接收技术在一体化接收机中的应用,可以更好的提高接收信号的信噪比,在测控过程中可以更迅速、更准确的捕获和跟踪目标信号.所以,分集接收技术是一体化接收机开发和实现的另一关键技术.本文的第四部分中,针对分集技术中的主要影响因素：同频同相调整和信噪比估计,进行了详细的分析和讨论.针对目前存在的同频同相方法中存在的缺陷,本文提出了一种基于互相关的同频同相调整方法,较好的解决了调整方法受调制类型限制的问题.在信号的信噪比估计方面,目前多数采用时域的方法,本文在频域上提出了一种采用傅里叶变换进行信噪比估计的方便,该方法思路简单,取得的效果较好,并使用MATLBA,进行了仿真验证.
关键词：一体化,自动识别,互相关,同频同相,信噪比估计
The future satellite receiving technology is integrated control field receiving technical development trend, integration and application of technology can receive the tt greatly reduced cost and reduce the measurement of human resources, reduce the required control activities of the manual intervention level, reduce human error operating, misoperation.
With the development of space technology development and progress, each type of aircraft is more and more, and communication technology development, the model satellite signal modulation type also continuous development progress, due to a variety of modulation signal types of coexist, make the modulated signal automatic identification technology as the key technology of integrated receivers one of development. Based on the analysis of the current carefully modulated type automatically identification method, on the basis of the modulation signal based on circular spectrum automatic identification method in detail of the method, and the recognition effect in detail in chapter 3, the simulation of MATLAB to cycle the end, SSCA algorithm, the spectrum of the actual hardware platform were tested, and achieved good effect.
Diversity receiving technology in the application of integrated receivers, can better improve SNR of received signal, in the measurement process can more quickly, accurately capture and track the target signal. So, diversity receiving technology is developed and implementation of integrated receivers another key technology. The fourth part, according to the main factors influencing diversity technique with frequency in-phase adjustment, and SNR estimation, and carried on the detailed analysis and discussion. Aiming at the existing with the same frequency in the defects existing in the method, this paper puts forward a method based on the cross-correlation with frequency in-phase adjustment method, better solved the adjustment method limiting by modulation type. In signal SNR estimation aspect, the majority of by time-domain in frequency domain method, this paper put forward a kind of using Fourier transform SNR estimation convenience, this method is simple, achieved result idea is good, and use MATLBA, simulated.
Keywords: integration, automatic recognition, cross-correlation, with frequency in-phase, SNR estimation
再问： 哥们，有道翻译是不错，但你也得改改再放上来啊。
再答： 唉……………………………………………………
With the development of space technology development and progress, each type of aircraft is more and more, and communication technology development, the model satellite signal modulation type also continuous development progress, due to a variety of modulation signal types of coexist, make the modulated signal automatic identification technology as the key technology of integrated receivers one of development. Based on the analysis of the current carefully modulated type automatically identification method, on the basis of the modulation signal based on circular spectrum automatic identification method in detail of the method, and the recognition effect in detail in chapter 3, the simulation of MATLAB to cycle the end, SSCA algorithm, the spectrum of the actual hardware platform were tested, and achieved good effect.
Diversity receiving technology in the application of integrated receivers, can better improve SNR of received signal, in the measurement process can more quickly, accurately capture and track the target signal. So, diversity receiving technology is developed and implementation of integrated receivers another key technology. The fourth part, according to the main factors influencing diversity technique with frequency in-phase adjustment, and SNR estimation, and carried on the detailed analysis and discussion. Aiming at the existing with the same frequency in the defects existing in the method, this paper puts forward a method based on the cross-correlation with frequency in-phase adjustment method, better solved the adjustment method limiting by modulation type. In signal SNR estimation aspect, the majority of by time-domain in frequency domain method, this paper put forward a kind of using Fourier transform SNR estimation convenience, this method is simple, achieved result idea is good, and use MATLBA, simulated.
Keywords: integration, automatic recognition, cross-correlation, with frequency in-phase, SNR estimation
再问： 哥们，有道翻译是不错，但你也得改改再放上来啊。
再答： 唉……………………………………………………