Experimental Teaching Reform of Angle Measuring Method in Digital Signal Processing Course

The angle measurement experiment is an innovative experiment in the digital signal processing course. This experiment combines engineering practice to allow students to comprehensively master the basic knowledge of circular convolution and window function. Aiming at the problems of the traditional amplitude ratio monopulse angle measurement method, due to the coupling of the azimuth angle and the pitch angle, the normalized error curve is not unique and the angle measurement results are uncertain. In this paper, a new monopulse angle measurement method based on sinusoidal coordinate system is designed. Through the transformation of the sinusoidal coordinate system, the coupling of the azimuth angle and the pitch angle in the angle measurement process is solved, thus realizing the uniqueness of the angle measurement result. On the premise of paying attention to the foundation, professionalism and practicability, this paper introduces innovative experimental methods and updates the teaching content. Through this experiment, students' innovative thinking and problem-solving ability are cultivated.