feat: integrate RTL-TCP server support

2025-11-01 22:39:52 +08:00
parent 356738ac10
commit 5aa19ada14
379 changed files with 109413 additions and 47 deletions
--- a/android/app/src/main/cpp/dsp/freqlockcomplex.h
+++ b/android/app/src/main/cpp/dsp/freqlockcomplex.h
@@ -0,0 +1,62 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018-2019 Edouard Griffiths, F4EXB <f4exb06@gmail.com>          //
+//                                                                               //
+// See: http://liquidsdr.org/blog/pll-howto/                                     //
+// Fixed filter registers saturation                                             //
+// Added order for PSK locking. This brilliant idea actually comes from this     //
+// post: https://www.dsprelated.com/showthread/comp.dsp/36356-1.php              //
+//                                                                               //
+// This program is free software; you can redistribute it and/or modify          //
+// it under the terms of the GNU General Public License as published by          //
+// the Free Software Foundation as version 3 of the License, or                  //
+// (at your option) any later version.                                           //
+//                                                                               //
+// This program is distributed in the hope that it will be useful,               //
+// but WITHOUT ANY WARRANTY; without even the implied warranty of                //
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                  //
+// GNU General Public License V3 for more details.                               //
+//                                                                               //
+// You should have received a copy of the GNU General Public License             //
+// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef SDRBASE_DSP_FREQLOCKCOMPLEX_H_
+#define SDRBASE_DSP_FREQLOCKCOMPLEX_H_
+
+#include "dsp/dsptypes.h"
+#include "export.h"
+
+/** General purpose Phase-locked loop using complex analytic signal input. */
+class SDRBASE_API FreqLockComplex
+{
+public:
+    FreqLockComplex();
+    ~FreqLockComplex();
+
+    void reset();
+    void setSampleRate(unsigned int sampleRate);
+    /** Feed PLL with a new signa sample */
+    void feed(float re, float im);
+    const std::complex<float>& getComplex() const { return m_y; }
+    float getReal() const { return m_yRe; }
+    float getImag() const { return m_yIm; }
+    float getFreq() const { return m_freq; }
+
+private:
+    /** Normalize angle in radians into the [-pi,+pi] region */
+    static float normalizeAngle(float angle);
+
+    float m_a0;
+    float m_a1;
+    std::complex<float> m_y;
+    float m_yRe;
+    float m_yIm;
+    float m_freq;
+    float m_phi;
+    float m_phiX0;
+    float m_phiX1;
+    float m_y1;
+};
+
+
+#endif /* SDRBASE_DSP_FREQLOCKCOMPLEX_H_ */