Overview

Deinterleaves the complex floating point vector into I & Q vector data. The output vectors are converted to doubles.

Dispatcher Prototype

void volk_32fc_deinterleave_64f_x2(double* iBuffer, double* qBuffer, const
lv_32fc_t* complexVector, unsigned int num_points) 

Inputs

• complexVector: The complex input vector.
• num_points: The number of complex data values to be deinterleaved.

Outputs

• iBuffer: The I buffer output data.
• qBuffer: The Q buffer output data.

Example Generate complex numbers around the top half of the unit circle and deinterleave in to real and imaginary double buffers.

int N = 10;
unsigned int alignment = volk_get_alignment();
lv_32fc_t* in  = (lv_32fc_t*)volk_malloc(sizeof(lv_32fc_t)*N, alignment);
double* re = (double*)volk_malloc(sizeof(double)*N, alignment);
double* im = (double*)volk_malloc(sizeof(double)*N, alignment);
 
for(unsigned int ii = 0; ii < N; ++ii){
    float real = 2.f * ((float)ii / (float)N) - 1.f;
    float imag = std::sqrt(1.f - real * real);
    in[ii] = lv_cmake(real, imag);
}
 
volk_32fc_deinterleave_64f_x2(re, im, in, N);
 
printf("          re  | im\n");
for(unsigned int ii = 0; ii < N; ++ii){
    printf("out(%i) = %+.1g | %+.1g\n", ii, re[ii], im[ii]);
}
 
volk_free(in);
volk_free(re);
volk_free(im);