已更新:用于控制信号步长(量化级别)的技术 [英] Updated :Technique used to control Step sizes (Quantization levels) of signals
问题描述
我有2个非线性信号，它们是从不同驱动器获取的传感器生成的.我想问的是，是否可以在Matlab中更改或控制信号的步长.
I have 2 nonlinear signals generated from sensors that were taken from different drives. I wanted to ask Is it possible to change or control the step size of signal in Matlab.
我的目标是使两个信号的步长相同，尽管它们是从传感器生成的，但是否可以通过MATLAB以及如何做到这一点.
My aim is to make the step size of 2 signals same though they are generated from sensor but Is it possible to do this through MATLAB and how.
步长是指量化步长，如图所示.
What I mean by step sizes is the quantization steps as shown in figure.
非常感谢.
如何在MATLAB中控制信号的步长.
How to control Step size of signal in MATLAB.
我想做什么.
-
我想在一些小数点上对信号进行采样.
I want to down sample my signal on some decimal points .
更改信号的步长.
到目前为止，我已经尝试过DownSample了.
For DownSample I have tried so far .
-
抽取
Decimate
下采样
但是这些命令适用于Integer值，但是如果我有一些十进制值，该怎么办.
But these commands works for Integer values but if I have some decimal Values what should I do .
所以我想到了减去一些样本值. 举个例子.
So I thought of subtracting some values for samples . Take an example..
ref=[1 2 3 4 5 6 7 8 9 10];
x= ref(1:3:10)
这将减少我的样本的期望值，我也将其更改为十进制值.
This will lessen my samples for desired values and I change these for decimal values also.
第二步:
我想控制信号的步长.
假设我的原始信号的步长为0.044，测量的信号的步长为0.10.
Let’s suppose my original signal has step size of 0.044 and my measured signal has step size of 0.10.
我要使原始信号的步长等于测量的信号. (这怎么可能).
I want to make the step size of original signal equal to measured signal. (How this is possible).
对不起，您无法提供原始数据，因为它有很多价值.
I am sorry for not being able to provide u the original data as it has a lot of values.
信号插值是您所解释的一种方法.不用插值还有其他方法吗?
Interpolation of signal is a way as you explained. Is there any other way to do that without interpolation?
因为我不想更改数据值，只想通过我拥有的值解决问题.
Because I don’t want to change my data values Just want to resolve the issue by the values that I have.
推荐答案
For the First question, can you interpolate the data using Interp1 function?
In the second question, i'm not familiar with that function, however it has a bandwidth property. Is it be the property that you want?
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