Functions | |
| static __INLINE float32_t | arm_linear_interp_f32 (arm_linear_interp_instance_f32 *S, float32_t x) |
| static __INLINE q31_t | arm_linear_interp_q31 (q31_t *pYData, q31_t x, uint32_t nValues) |
| static __INLINE q15_t | arm_linear_interp_q15 (q15_t *pYData, q31_t x, uint32_t nValues) |
| static __INLINE q7_t | arm_linear_interp_q7 (q7_t *pYData, q31_t x, uint32_t nValues) |
Linear interpolation is a method of curve fitting using linear polynomials. Linear interpolation works by effectively drawing a straight line between two neighboring samples and returning the appropriate point along that line
Linear interpolation
y = y0 + (x - x0) * ((y1 - y0)/(x1-x0))
where x0, x1 are nearest values of input x
y0, y1 are nearest values to output y
S points to an instance of the Linear Interpolate function data structure. x is the input sample value. The functions returns the output value.| static __INLINE float32_t arm_linear_interp_f32 | ( | arm_linear_interp_instance_f32 * | S, |
| float32_t | x | ||
| ) | [static] |
Process function for the floating-point Linear Interpolation Function.
| [in,out] | *S | is an instance of the floating-point Linear Interpolation structure |
| [in] | x | input sample to process |
Definition at line 5377 of file arm_math.h.
Process function for the Q31 Linear Interpolation Function.
| [in] | *pYData | pointer to Q31 Linear Interpolation table |
| [in] | x | input sample to process |
| [in] | nValues | number of table values |
x is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part. This function can support maximum of table size 2^12. Definition at line 5436 of file arm_math.h.
Process function for the Q15 Linear Interpolation Function.
| [in] | *pYData | pointer to Q15 Linear Interpolation table |
| [in] | x | input sample to process |
| [in] | nValues | number of table values |
x is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part. This function can support maximum of table size 2^12. Definition at line 5496 of file arm_math.h.
Process function for the Q7 Linear Interpolation Function.
| [in] | *pYData | pointer to Q7 Linear Interpolation table |
| [in] | x | input sample to process |
| [in] | nValues | number of table values |
x is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part. This function can support maximum of table size 2^12. Definition at line 5553 of file arm_math.h.
1.7.2