Files
Robert Schmidt 8107939f08 Change OAI license to CSSL v1.0 (and others)
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
  scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly

For automated changes based on OAI PL v1.1:

    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
    perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml

The rest (cmake, files with missing license, cmake) manually.
2026-03-27 16:36:37 +01:00

38 lines
731 B
C

/*
* SPDX-License-Identifier: LicenseRef-CSSL-1.0
*/
/******************************
* purpose: compute the angle of a 8 bit complex number
*******************************/
#include "costable.h"
#include "defs.h"
unsigned int angle(c16_t perror)
{
int a;
// a = atan(perror.i/perror.r);
//since perror is supposed to be on the unit circle, we can also compute a by
if (perror.i>=0) {
if (perror.r>=0)
a = acostable[min(perror.r,255)];
else
a = 32768-acostable[min(-perror.r,255)];
//a = asin(perror.i);
} else {
if (perror.r>=0)
a = 65536-acostable[min(perror.r,255)];
else
a = 32768+acostable[min(-perror.r,255)];
//a = 2*PI-asin(perror.i);
}
return a;
}