PDR/1.Software/PDR 1.04/include/Utils.h

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#ifndef _PDR_UTIL_H_
#define _PDR_UTIL_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdio.h>
#define TRAJ_POINT_COUNT 1000
#define MIN_POINT_COUNT 15
#define OPT_TRAJ_TIMEOUT 1000
#define FALIED_LINE 0
#define IN_LINE 1
#define CLOSE_START 2
#define CLOSE_END 3
typedef struct LatLng{
double lat;
double lon;
} LatLng_t;
typedef struct TrajSign
{
int count;
double lastTime;
double weight;
double yaw[TRAJ_POINT_COUNT];
double error[TRAJ_POINT_COUNT];
double points[TRAJ_POINT_COUNT][2];
}TrajSign;
/**地球相关参数*******************************************************************/
typedef struct
{
double rmh; /* 子午圈曲率半径 */
double rnh; /* 卯酉圈曲率半径 */
double grav; /* 当地重力加速度 */
double lat; /* 当地纬度rad*/
double wnie[3]; /* 地理系相对惯性系的角速度在导航系分量 */
} EarthData_t;
/**----------------------------------------------------------------------
* Function : mean
* Description : 对输入double数组求均值
* Review : 求均值过程每次都做除法,有优化空间,可以针对求解均值的数值大小采用
* 不同函数
* Date : 2020/7/4 logzhan
*---------------------------------------------------------------------**/
double mean(double *x, int n);
float fmean(float *data, int len);
float stdf(float* data, int len);
double meanAngle(double* angle, int len);
void modAngle(double * angle, double min, double max);
double pow_i(double num, long long n);
double pow_f(double num, double m);
double pow(double x, double y);
void centralization(double *x, double *x_out, int n);
void GetCovMatrix(double *x, double *y, double cov[2][2], int n);
int Jacobi(double a[][2], double p[][2], int n, double eps, int T);
LatLng_t ProjPointOfLatLng(LatLng_t point, LatLng_t linePointA, LatLng_t linePointB);
double CalDistance(LatLng_t pointA, LatLng_t pointB);
void ProjPointOfLatLng_cir(double point1[], double yaw, double point2[], double result[]);
/**----------------------------------------------------------------------
* Function : pdr_invSqrt
* Description : 计算1/sqrt(x)的快速的算法
* Date : 2020/6/30 logzhan
*---------------------------------------------------------------------**/
float InvSqrt(float x);
/**---------------------------------------------------------------------
* Function : Vec3Norm
* Description : 三维浮点数向量归一化
* Date : 2021/01/26 yuanlin@vivocom &&
*
*
*---------------------------------------------------------------------**/
void Vec3Norm(float* vx, float* vy, float* vz);
/**----------------------------------------------------------------------
* Function : pdr_writeCsvStr
* Description : 将字符串信息写入文本主要是对fprintf封装一层
* Date : 2020/7/8 logzhan
*---------------------------------------------------------------------**/
void WriteCsvStr(FILE* fp_write, char* str);
/**----------------------------------------------------------------------
* Function : pdr_utc2hms
* Description : 将UTC时间转换为时分秒
* Date : 2020/7/8 logzhan
*---------------------------------------------------------------------**/
void pdr_utc2hms(double utc, double* h, double* m, double* s);
/**----------------------------------------------------------------------
* Function : qnb2att
* Description : 四元数转欧拉角
* Date : 2020/7/4 logzhan
*---------------------------------------------------------------------**/
void Qnb2Att(float* q, double* attitude);
double CalRadianDifferent(double s_dir, double d_dir);
/**----------------------------------------------------------------------
* Function : pdr_earthParameter
* Description : 根据输入纬度返回该纬度地球相关参数
* Date : 2020/7/8 logzhan
*---------------------------------------------------------------------**/
EarthData_t CalEarthParameter(double oriLat);
/**----------------------------------------------------------------------
* Function : Motion2TypeStr
* Description : 把用户运动类型转换为字符串输出
* Date : 2022/9/16 logzhan
*---------------------------------------------------------------------**/
const char* Motion2TypeStr(int type);
int pdr_min(int param_a, int param_b);
#ifdef __cplusplus
}
#endif
#endif