lpf

java.lang.Object

liba.lpf

public class lpf extends Object

Low Pass Filter

Constructor Summary

Constructors

Constructor

Description

lpf(double fc, double ts)

construct a new lpf object
Method Summary

Modifier and Type

Method

Description

final double

alpha()

get coefficient for Low Pass Filter

final lpf

gen(double fc, double ts)

generate for Low Pass Filter

final double

iter(double x)

compute for Low Pass Filter

final double

output()

get output for Low Pass Filter

final lpf

zero()

zeroing for Low Pass Filter

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- lpf
  
  public lpf(double fc, double ts)
  
  construct a new lpf object
  
  Parameters:
  
  fc - cut-off frequency unit(hz)
  
  ts - sampling time unit(s)
Method Details
- alpha
  
  public final double alpha()
  
  get coefficient for Low Pass Filter
  
  Returns:
  
  filter coefficient [0,1]
- output
  
  public final double output()
  
  get output for Low Pass Filter
  
  Returns:
  
  filter output
- gen
  
  public final lpf gen(double fc, double ts)
  
  generate for Low Pass Filter
  
  Parameters:
  
  fc - cut-off frequency unit(hz)
  
  ts - sampling time unit(s)
  
  Returns:
  
  lpf
- iter
  
  public final double iter(double x)
  
  compute for Low Pass Filter
  
  Parameters:
  
  x - input value
  
  Returns:
  
  output value
- zero
  
  public final lpf zero()
  
  zeroing for Low Pass Filter
  
  Returns:
  
  lpf