Job_SignsPads/STM32/Code/STM32F405/Application/find_peaks.h

#ifndef FIND_PEAKS_H  // 防止头文件重复包含[3,6,7](@ref)
#define FIND_PEAKS_H

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <main.h>
#include <string.h>


#define SAMPLE_RATE 50
#define WINDOW_SIZE 50
#define DATA_LENGTH 600
#define MIN_PEAK_DISTANCE 30       // 0.8Hz最低间隔(50/1.6≈30点)
#define MOVING_AVG_WINDOW 5        // 滑动窗口大小
#define MAX_CANDIDATES 100  // 根据实际信号特征调整
#define DYNAMIC_THRESH_RATIO 0.6f

typedef struct {
    int peaks[60];    // 静态数组避免动态内存分配
    float thresholds[DATA_LENGTH]; // 存储动态阈值
    int count;
} PeakResult;


int time_domain_heart_rate(float* hp_data);
int fast_select_hr(const float candidates[4], const float *data, float *fft_energy_ratios);

#endif // FIND_PEAKS_H