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authorArturs Artamonovs <arturs.artamonovs@protonmail.com>2024-11-01 08:38:25 +0000
committerArturs Artamonovs <arturs.artamonovs@protonmail.com>2024-11-01 08:38:25 +0000
commitca50c0f64f1b2fce46b4cb83ed111854bac13852 (patch)
tree92713a6fb08559f6f7ddd4e03781572eba0a7f02 /Radio/HW/AirSpyHF/src/iqbalancer.h
parente3a7f5bafec6715cd11555c39925665c78029dd9 (diff)
downloadPrySDR-ca50c0f64f1b2fce46b4cb83ed111854bac13852.tar.gz
PrySDR-ca50c0f64f1b2fce46b4cb83ed111854bac13852.zip
rtlsdr library example compiles
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+/*
+Copyright (c) 2016-2023, Youssef Touil <youssef@airspy.com>
+Copyright (c) 2018, Leif Asbrink <leif@sm5bsz.com>
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+ Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ Neither the name of Airspy HF+ nor the names of its contributors may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __IQ_BALANCER_H__
+#define __IQ_BALANCER_H__
+
+#include "airspyhf.h"
+
+#define FFTBins (4 * 1024)
+#define BoostFactor 100000.0
+#define BinsToOptimize (FFTBins/25)
+#define EdgeBinsToSkip (FFTBins/22)
+#define CenterBinsToSkip 2
+#define MaxLookback 4
+#define PhaseStep 1e-2f
+#define AmplitudeStep 1e-2f
+#define MaxMu 50.0f
+#define MinDeltaMu 0.1f
+#define DcTimeConst 1e-4f
+#define MinimumPower 0.01f
+#define PowerThreshold 0.5f
+#define BuffersToSkipOnReset 2
+#define MaxPowerDecay 0.98f
+#define MaxPowerRatio 0.8f
+#define BoostWindowNorm (MaxPowerRatio / 95)
+
+#if defined(__arm__) && !defined(__force_hiq__)
+ #define BuffersToSkip 4
+ #define FFTIntegration 2
+ #define FFTOverlap 1
+ #define CorrelationIntegration 4
+#else
+ #define BuffersToSkip 2
+ #define FFTIntegration 4
+ #define FFTOverlap 2
+ #define CorrelationIntegration 16
+#endif
+
+struct iq_balancer_t;
+
+typedef airspyhf_complex_float_t complex_t;
+
+ADDAPI struct iq_balancer_t * ADDCALL iq_balancer_create(float initial_phase, float initial_amplitude);
+ADDAPI void ADDCALL iq_balancer_set_optimal_point(struct iq_balancer_t *iq_balancer, float w);
+ADDAPI void ADDCALL iq_balancer_configure(struct iq_balancer_t *iq_balancer, int buffers_to_skip, int fft_integration, int fft_overlap, int correlation_integration);
+ADDAPI void ADDCALL iq_balancer_process(struct iq_balancer_t *iq_balancer, complex_t* iq, int length, uint8_t skip_eval);
+ADDAPI void ADDCALL iq_balancer_destroy(struct iq_balancer_t *iq_balancer);
+
+#endif