The Research On Principle,Algorithm Of Shockwave Target-Report & Singnal Processing Method

The automatic hide-show target-reporting systerm is designed for adapting to the need of modern military training. Training the army shooting on the firing field with the live ammunition is an important factor to form the fighting strength and battle effectiveness, which requires high guarantee establishment ,because of its high dangerous coefficient, it has many problems in the training. With the rapid development of national defence and training method modernization, the target-reporting of service target practice must be changed gradually from manual basis,which is not only dengerous,takes more time ,laboursome but also inaccuracy,to self-action. Pellet Shockwave signal target-reporting systerm in this thesis is an advanced, intelligent target-reporting system. It is based on the supersonic pellet from acoustic shock caused by the explosion flew when the acoustic sensor array burst pulse delay data and shock morphology and sensor array of the geometric relationships between the constructed ultrasound at the target location mathematical model of computer data acquisition and integration of numerical calculation of real-time target-reporting system. The action of target is not conventionaland changed of indication sign when the shooter is aiming,as well as the calibrated receipt of accuracy checking of the acousitic target-reporting systerm. The hide and show of the target is not through the raditional complex mechanical to achieve the target,it relies on electrical circuit design to achieve the rotating motor to achieve increased system stability and technical content. In addition, the system can achieve a reliable long distince of the wireless remote control action. The thesis uses the popular virtual instrument technology to design the acquisition soft, used in conjunction with the NI PCI6251 data acquisition card and the corresponding hardware circuit design projectile shock of the original signal acquisition, display and preservation. Using MATLAB tool for the application of wavelet analysis method to analyze the original shock wave signals with noise. The singnals were analyzed with a variety of application of wavelet and try to deal with a variety of methods for processing, and ultimately accurate extraction of the characteristics of the shock wave to speed up the process of the project, to make the study in theoretical breakthroughs. In addition, The thesis also analyze the system from the point of view of stability of the entire system to ensure product stability. This thesis covers the subject of communications, signal acquisition and processing, computer and its interface technology,single-chip computer techniques, automatic control, etc.It is the synthetical embodiment of automation technology used in the practical application. Sum all,the project has high science and technology level,the product fills up the blank of the train device in army, it can satisfy the need of the shooting training of army many kinds of armored vehicles weapon and handled weapon. It has advanced and boosted the training level and efficiency,it has quit extensive application value and expansion value.