55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/******************** (C) COPYRIGHT 2020 Geek************************************
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* File Name : pdr_kalman.h
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* Department : Sensor Algorithm Team
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* Current Version : V2.0(compare QCOM SAP 5.0)
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* Author : logzhan
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* Date of Issued : 2020.7.3
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* Comments : PDR 卡尔曼滤波器头文件函数声明以及相关结构体定义
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********************************************************************************/
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#ifndef _PDR_KALMAN_H_
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#define _PDR_KALMAN_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**----------------------------------------------------------------------
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* Function : EKF_Init
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* Description : 初始化卡尔曼滤波器相关
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* Date : 2022/09/19
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*---------------------------------------------------------------------**/
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void EKF_Init(void);
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/**----------------------------------------------------------------------
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* Function : EKFStatePredict
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* Description : pdr卡尔曼滤波器的状态预测方程
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* Date : 2022/09/19 logzhan
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*---------------------------------------------------------------------**/
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void EKFStatePredict(EKFPara_t* kf, double step_length, PDR_t* g_pdr, int step);
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/**----------------------------------------------------------------------
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* Function : EKFCalQRMatrix
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* Description : 计算卡尔曼滤波噪声矩阵
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* scane_type, 用户所处场景（开阔和非开阔）
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* nmea_data，NMEA数据结构体
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* g_pdr，PDR结构体
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* sys，运动幅度数据结构体
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* kf，EKF数据结构体
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* Date : 2022/09/19 logzhan
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*---------------------------------------------------------------------**/
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void EKFCalQRMatrix(Nmea_t* nmea_data, PDR_t* g_pdr, Classifer_t* sys, EKFPara_t* kf);
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/**----------------------------------------------------------------------
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* Function : pdr_ekfStateUpdate
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* Description : pdr卡尔曼滤波器的状态更新方程
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* Date : 2020/7/22 logzhan
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*---------------------------------------------------------------------**/
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void EKFStateUpdate(EKFPara_t* kf, GNSS_t* pgnss, Classifer_t* sys, PDR_t* g_pdr,
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int scene_type);
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#ifdef __cplusplus
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}
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#endif
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#endif
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