DIRECTION FINDING METHOD AND DIRECTION FINDING SYSTEM FOR DETECTING AND TRACKING TEMPORALLY SUCCESSIVE BEARING ANGLES

摘要

The present invention relates to a direction finding method for detecting and tracking them in time with continuous azimuth of acoustic emission targets about that, displaying azimuth trajectory of a continuous azimuth in time to Waterfall expression, and the desired trajectory marked by the azimuth tracker. To automate the deletion of records and tracker, time is calculated to azimuthal locus as the state vector is assigned to each track, and the azimuth bearing strength according to the case and its time derivative, referred to as the rate of change and the intensity trajectory state having a time derivative which is referred to as the rate of change of the vector, and the locus in the state vector Starting from the assigned trajectory error, time predicted state vector for The prediction with the prediction error estimate. In addition, based on the approximation of the time trend of the azimuth track having a straight line as the target moves those dynamics model to predict the state vector and the estimated error of each prediction. Each time the predicted azimuth Finally, the calculated azimuth or the strength and the Finally, the calculation is calculated from the sum of the azimuth rate of change or the rate of change of intensity per unit time multiplied by the same azimuth trajectory made. The examination of the assigned probabilities to assign the measured azimuth angle or intensity in one of the azimuthal trajectory. Depending on the calculated probability assignment, measuring the azimuth and the measured intensity with time prediction according to the prediction strength according to the azimuth angle and, if the case img file = "112010036795038-pat00802.jpg" he = "5" id = "i0802" img -format = "jpg" wi = calculates the estimated strength with the estimated azimuth angle and the case for the "10" / Estimated by the azimuth estimation values calculated as such with the estimated intensity and rate of change of the rate of change if state vector to form the locus of the trajectory azimuth. If not assigned to a locus bearing a plurality of measurement in accordance with the intensity and when a plurality of measured azimuth, by summing each weighted estimated values to form a state vector of the locus trajectory azimuth. Its trajectory state vector from to afford the corresponding azimuth output variables of the state vector of the trajectory trajectory forecast for the next unit of time for predictions. Displays depending on the grade of the locus formed as the azimuth track. The present invention also relates to a direction finding system appropriately configured in its direction detection methods. ;