| In order to fulfill the need of RF spectrum analyzer, this project, considering the application of spectrum analyzer in detecting satellite television signal, designs the spectrum analyzer which can supervise the television signals.This dissertation mainly consists of two parts, the first one describes the design and realization of the system software of the Spectrum Analyzer in detail; secondly, it presents the application of spectrum analyzer in detecting satellite television signal and related some algorithms.The design of the software adopted Object Oriented Programming (OOP) method and developed with Visual C++ 6.0 on Windows platform. The systematic software design mainly includes the front panel, data processing and the software-hardware interface. The front panel accomplishes the communication between users and Spectrum Analyzer. Data processing is responsible for data receiving, sending and algorithmic dispatching, and the software-hardware interface does the communication between hardware and software.This paper describes some key parts of the system software of the Spectrum Analyzer, including the design of multiple threads, the realization of multi-diagram, the data processing in frequency domain and so on.In addition, this paper analyses the algorithm of spectrum analyzer in detecting satellite television signal, and proposes the design of auto-detection system composed by spectrum analyzers. |
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