#1633 DMR Decoder redesign. Uses new DQPSK vector/scalar demodulator implementations and soft sync detectors for more accurate detections and symbol timing and symbol period calculations. Includes two new calibrations with scalar and vector implementations for DQPSK demodulator and Interpolator. Enhances DMR error detection and correction algorithms, specifically the block product turbo code algorithms. (#2115)

Co-authored-by: Dennis Sheirer <dsheirer@github.com>

src/main/java/io/github/dsheirer/edac/IHamming.java

@@ -0,0 +1,39 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2024 Dennis Sheirer
+ *
+ * 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, either 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 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/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.edac;
+
+import io.github.dsheirer.bits.BinaryMessage;
+
+/**
+ * Interface for Hamming error index calculator.
+ */
+public interface IHamming
+{
+    int NO_ERRORS = -1;
+    int MULTIPLE_ERRORS = 1000;
+
+    /**
+     * Calculate the error index for the Hamming protected binary sequence
+     * @param message containing the binary sequence
+     * @param offset to the start of the binary sequence
+     * @return -1 if no errors, single-bit error index, or 1000 if there is more than a single-bit error detected.
+     */
+    int getErrorIndex(BinaryMessage message, int offset);
+}