| The paper advices a whole resolve scheme of triangle wave modulation automotive anti-collision radar which has two channal receivers, gives interfere wave eliminate means and frequency pairing up means, including their signal processing means and their flow charts when the radar measures ranges and relative speeds of multi-objects. Firstly, the scheme eliminates interfere waves, using the improved frequency shift means detect the beat frequency of the stationary object, and the mixture beat frequency of the stationary object and the moving objects, the above interfere wave eliminate means can eliminate the false-alarm effectively arosing by stationary-objects, as well as stationary objects and moving objects for considering the radar wave-beam direction and having the error compensatation ability. Secondly, the scheme realizes frequency pairing up of muliti moving objects by using multi-means combination to eliminate the false-alarm/lost-alarm arosing by muliti moving objects, then determines correctly distances and velocities of each the moving objects. At last, the improvement of approach means of the optimal high resolution window function used in the system and givng the relevant numerical value calculation is introduced. |
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