Design And Implementation Of The Real-time Spectrum Monitoring Software On The Android Platform

Real-time spectrum analysis technology becomes a new technology of spectrum analysis with the development of digital signal processing technique, it is able to monitor and analyze the weak signal, the burst signal, also can analysis the signal in the time domain, frequency domain, spemodulation domain, which is important for spectrum monitoring.However most of the real-time spectrum monitoring equipments have the following 3 defects:(1) The equipments are most bulky, expensive, inconvenient to carry;(2) The interface and the function is simple, and the software is difficult to operate,and is hard to integrate other applications;(3) Its data is less compatible with other-field equipments, namely it is hard tocheck the data on the other-field equipments.This thesis design the real-time spectrum monitoring software on our hardware platform which is miniature, energy-saving, easy to carry, etc. The software platform is the Android operating system, which has considerable advantages on the beauty of the system, the function and data compatibility. The main contribution of this thesis is as follows:Firstly, according to the software requirements, the software is divided into three functions about monitoring weak signals, burst signals, analysising the disturbing state of the required frequency point, displaying the information for the guidance of the spectrum monitoring equipment, the thesis designs the entire interface for interaction with the user, and provides the whole process of the operation.Secondly, the thesis proposes the framework of the software and gives the detail of the software design. The software is devised into three layers, namely displaying layer, business layer, data processing layer. Then the thesis discusses them, and gives the process and solution of the layers in detail.Finally, this thesis tests the software in the aspects of function and performance, and gives the platform, the methods of the software tests, and analyzes the results. The results show that the software can complete functional requirements and meet the demands, at the same time, the throughput rate of collecting spectrum data can reach 20.6 frames per second.The study of real-time spectrum monitoring on the platform of Android provides a solution of the business development to the direction of portability and miniaturization, but also this thesis addes a new software application for the Android platform, which has certain practical value.