python编程实现IMR 格式惯导数据的读取与解析详细代码附注释加运行
时间: 2024-03-29 07:35:15 浏览: 216
好的,以下是 Python 实现 IMR 格式惯导数据的读取与解析的详细代码:
```
import struct
# 定义 IMRData 类
class IMRData:
def __init__(self, header, version, length, seq_num, time_stamp, checksum, gyro_x, gyro_y, gyro_z, accel_x, accel_y, accel_z, mag_x, mag_y, mag_z, status):
self.header = header
self.version = version
self.length = length
self.seq_num = seq_num
self.time_stamp = time_stamp
self.checksum = checksum
self.gyro_x = gyro_x
self.gyro_y = gyro_y
self.gyro_z = gyro_z
self.accel_x = accel_x
self.accel_y = accel_y
self.accel_z = accel_z
self.mag_x = mag_x
self.mag_y = mag_y
self.mag_z = mag_z
self.status = status
# 打开数据文件
with open('data.bin', 'rb') as fp:
# 读取数据头
header = fp.read(2)
if header != b'\x55\xAA':
print('文件头错误!')
exit(1)
# 读取版本号
version = int.from_bytes(fp.read(1), byteorder='little')
if version != 0x01:
print('版本号错误!')
exit(1)
# 读取数据长度
length = int.from_bytes(fp.read(2), byteorder='little')
# 读取序列号和时间戳
seq_num, time_stamp = struct.unpack('<II', fp.read(8))
# 读取校验和
checksum = int.from_bytes(fp.read(2), byteorder='little')
# 读取陀螺仪、加速度计、磁力计数据
gyro_x, gyro_y, gyro_z, accel_x, accel_y, accel_z, mag_x, mag_y, mag_z = struct.unpack('<9f', fp.read(36))
# 读取状态字
status = int.from_bytes(fp.read(1), byteorder='little')
# 构造 IMRData 对象
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