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Tweaks to noise measurements.

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This commit is contained in:
Oliver Jowett 2015-06-16 10:13:25 +01:00
parent 7d4eaf6a48
commit 21bdc45bf0
7 changed files with 48 additions and 50 deletions
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25
convert.c
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@ -65,8 +65,8 @@ static void convert_uc8_nodc_power(void *iq_data,
{
uint16_t *in = iq_data;
unsigned i;
uint16_t mag;
uint64_t power = 0;
uint16_t mag;
MODES_NOTUSED(state);
@ -74,45 +74,46 @@ static void convert_uc8_nodc_power(void *iq_data,
for (i = 0; i < (nsamples>>3); ++i) {
mag = Modes.maglut[*in++];
*mag_data++ = mag;
power += mag*mag;
power += (uint32_t)mag * (uint32_t)mag;
mag = Modes.maglut[*in++];
*mag_data++ = mag;
power += mag*mag;
power += (uint32_t)mag * (uint32_t)mag;
mag = Modes.maglut[*in++];
*mag_data++ = mag;
power += mag*mag;
power += (uint32_t)mag * (uint32_t)mag;
mag = Modes.maglut[*in++];
*mag_data++ = mag;
power += mag*mag;
power += (uint32_t)mag * (uint32_t)mag;
mag = Modes.maglut[*in++];
*mag_data++ = mag;
power += mag*mag;
power += (uint32_t)mag * (uint32_t)mag;
mag = Modes.maglut[*in++];
*mag_data++ = mag;
power += mag*mag;
power += (uint32_t)mag * (uint32_t)mag;
mag = Modes.maglut[*in++];
*mag_data++ = mag;
power += mag*mag;
power += (uint32_t)mag * (uint32_t)mag;
mag = Modes.maglut[*in++];
*mag_data++ = mag;
power += mag*mag;
power += (uint32_t)mag * (uint32_t)mag;
}
for (i = 0; i < (nsamples&7); ++i) {
mag = Modes.maglut[*in++];
*mag_data++ = mag;
power += mag*mag;
power += (uint32_t)mag * (uint32_t)mag;
}
if (out_power)
*out_power = power / (65535.0 * 65535.0);
if (out_power) {
*out_power = power / 65535.0 / 65535.0;
}
}
static void convert_uc8_generic(void *iq_data,