RADAR identification device aerial objects with adaptive timing of MAXIMIZATION angular velocity change of its multiple angles when TRAJECTORY Unstable atmospheric flight

摘要

The radar device identification object air to maximize the time the adaptive selection of the angular velocity changes its angle of trajectory instabilities during flight in the atmosphere. The invention relates to radar engineering and may be used to extend the capabilities information for identifying radar aerial objects. To improve the quality of identification of aircraft in the form of the prototype device is further administered an analog-digital converter (ADC) and 4 new digital block: block for calculating autocorrelation coefficients (BVKA) block smoothing and finding extrema (BSNE), storage unit (BCD) and calculating unit identification sign (BVPI). When this ADC input connected to the output of the low pass filter, and the output - at the same time to the input BVKA and second input BCD whose first input is connected to the output BSNE, and output - with an input BVPI whose output is linked to the input BI and input BSNE connected to the output BVKA. This arrangement allows the circuit device to form the identification indication expressing a degree of change of the reflected signal levels when changing the angle of location of the object exclusively on the intervals at maximum angular velocity of rotation of the airframe of the aircraft relative to the radar. To find such points in the reflected signals are memorized for excessive analysis interval of about 5 seconds, and then carried out a correlation analysis of the formed and recorded in the memory of the amplitude reflectance characteristics of the object. The maximum angular rotation speed is determined to minimize the estimated autocorrelation coefficient private sample reflections. Technical effect - increasing probability of correct identification of the object followed by air.