#!/usr/bin/env python3 """分析航向角误差""" import math # 从log中提取的数据 pos_x, pos_y = 1.89, -2.81 # 当前位置 tgt_x, tgt_y = 5.40, -7.17 # 目标位置 current_hdg = 308.13 # 当前航向角(度) # 计算期望航向(数学坐标系:东=0°,逆时针为正) dx = tgt_x - pos_x dy = tgt_y - pos_y dist = math.sqrt(dx**2 + dy**2) # 数学坐标系的角度 math_angle_rad = math.atan2(dy, dx) math_angle_deg = math.degrees(math_angle_rad) # 转换为罗盘角度(北=0°,顺时针为正) compass_angle_deg = 90.0 - math_angle_deg if compass_angle_deg < 0: compass_angle_deg += 360 if compass_angle_deg >= 360: compass_angle_deg -= 360 print(f"当前位置: ({pos_x:.2f}, {pos_y:.2f})") print(f"目标位置: ({tgt_x:.2f}, {tgt_y:.2f})") print(f"位移向量: dx={dx:.2f}m, dy={dy:.2f}m, dist={dist:.2f}m") print(f"\n期望航向角(数学坐标系,东=0°): {math_angle_deg:.1f}°") print(f"期望航向角(罗盘坐标系,北=0°): {compass_angle_deg:.1f}°") print(f"当前航向角(IM23A报告): {current_hdg:.1f}°") print(f"\n航向误差: {current_hdg - compass_angle_deg:.1f}°") print(f"如果航向反了180°,实际车头方向: {(current_hdg + 180) % 360:.1f}°") print(f"那么航向误差应该是: {((current_hdg + 180) % 360) - compass_angle_deg:.1f}°")