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Diffstat (limited to 'Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_f64.c')
| -rwxr-xr-x | Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_f64.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_f64.c b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_f64.c new file mode 100755 index 0000000..7ab265e --- /dev/null +++ b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_f64.c @@ -0,0 +1,80 @@ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_cmplx_mag_f64.c + * Description: Floating-point complex magnitude + * + * $Date: 13 September 2021 + * $Revision: V1.10.0 + * + * Target Processor: Cortex-M and Cortex-A cores + * -------------------------------------------------------------------- */ + +/* + * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the License); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an AS IS BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "arm_compiler_specific.h" + + +#include "dsp/complex_math_functions.h" + +/** + @ingroup groupCmplxMath + */ + + + +/** + @addtogroup cmplx_mag + @{ + */ + +/** + @brief Floating-point complex magnitude. + @param[in] pSrc points to input vector + @param[out] pDst points to output vector + @param[in] numSamples number of samples in each vector + */ +ARM_DSP_ATTRIBUTE void arm_cmplx_mag_f64( + const float64_t * pSrc, + float64_t * pDst, + uint32_t numSamples) +{ + uint32_t blkCnt; /* loop counter */ + float64_t real, imag; /* Temporary variables to hold input values */ + + /* Initialize blkCnt with number of samples */ + blkCnt = numSamples; + + while (blkCnt > 0U) + { + /* C[0] = sqrt(A[0] * A[0] + A[1] * A[1]) */ + + real = *pSrc++; + imag = *pSrc++; + + /* store result in destination buffer. */ + *pDst++ = sqrt((real * real) + (imag * imag)); + + /* Decrement loop counter */ + blkCnt--; + } + +} + +/** + @} end of cmplx_mag group + */ |
