LPS331AP访问过滤是什么样的？

嗨，


我是一名德国学生，我正在从事一个私人项目。它是一种无人机（UnmannedAirVehicle），它通过压力控制它的高度。为此，我想使用LPS331AP，但原始数据输出以大约0.05 Hz的频率进行振荡。通常情况下，我会使用带阻滤波器来减少/减少这种噪音，但如果无人机向上或向下移动，频率可能会/通常是相同的，所以这不适合。
在应用说明“硬件和软件指南”中，它在第16页上说明：
''对于室内导航，当需要子仪表检测时，可以使用特殊的递归滤波器
使用。根据传感器特性和应用要求调整S / W滤波器
通常是一个很好的举动。传感器融合是使用所有可用的最先进的过滤器
信息并使用它们来减少定位噪音。
“”
但我找不到有关这个''递归过滤器'的更多信息。如果过滤器应该是什么样的？我已经在使用传感器融合 - ＆gt;我将加速度计双重整合以获得高度，并使用互补滤波器将其与LPS331AP读数相结合。但LPS331AP的噪声频率太低而无法确定。
我不需要知道绝对的压力。

感谢阅读和阅读对不起，我的英语不好
#filter＃lps331ap #noise



以下为原文




Hi,


i'm a german student and i'm working on a private project. It's a UAV (UnmannedAirVehicle), which controls it's altitude by pressure. For this, i want to use a LPS331AP, but the raw-data output oscilates with a frequency of about 0.05 Hz. Normally, i would use a bandstop filter to reduce / minimize this noise, but if the UAV moves up or down, the frequency can be / will be often the same, so this doesn't fit.
In the application note ''Hardware and software guidlines'' it says on page 16:
'' For indoor navigation when sub meter detection is required, a special recursive filter could
be used. Tailoring the S/W filter for the sensor characteristic and the application requirement
is usually a good move. Sensor fusion is the most advanced filtering which uses all available
information and uses them to reduce the positioning noise.
''
But i can't find any more information about this ''recursive filter''. What sort if filter should this be? I'm allready using sensor fusion -> i double integrate a accelerometer to get the height out of it and use a complementary filter to combine this with the LPS331AP readings. But the noise frequency of the LPS331AP is too low to determine it.
I don't need to know the absolute pressure.  

Thanks for reading & sorry for my bad english  
#filter #lps331ap #noise