Trigonometric function operation circuit based on fixed point number
A technology of trigonometric functions and operation circuits, which is applied in the fields of electrical digital data processing, digital data processing components, calculations, etc., and can solve the problems of limited operation results, large circuit scale, and increased hardware overhead.
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[0020] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0021] The circuit design of the embodiment of the present invention is mainly based on the hardware implementation of the CORDIC algorithm. The CORDIC algorithm is an iterative algorithm with linear convergence and sequential execution, that is, at least N iterations are required for N-bit precision, and the i+1th iteration can only be executed after the ith iteration is completed. The CORDIC algorithm can decompose a variety of complex operations that are difficult to implement in hardware into unified simple shift and addition operations, and then approximate the results one by one. CORDIC algorithm can be applied to circular system, linear system and hyperbolic system, and each system has rotation mode and vector mode. Since the trigonometric functions belong to the circular system, the following mainly describes the application of CORDIC und...
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