ldoc

• Index

Contents

• Tables
• Methods

Classes

• a.complex
• a.crc16
• a.crc32
• a.crc64
• a.crc8
• a.hpf
• a.lpf
• a.pid
• a.pid_fuzzy
• a.pid_neuro
• a.tf
• a.trajbell
• a.trajpoly3
• a.trajpoly5
• a.trajpoly7
• a.trajtrap
• a.version

Modules

• liba
• liba.complex
• liba.crc16
• liba.crc32
• liba.crc64
• liba.crc8
• liba.hpf
• liba.lpf
• liba.mf
• liba.pid
• liba.pid_fuzzy
• liba.pid_neuro
• liba.tf
• liba.trajbell
• liba.trajpoly3
• liba.trajpoly5
• liba.trajpoly7
• liba.trajtrap
• liba.version

Class a.lpf

Low Pass Filter

Tables

a.lpf

Low Pass Filter

Methods

a.lpf:new (fc, ts)	constructor for Low Pass Filter
a.lpf:gen (fc, ts)	generate for Low Pass Filter
a.lpf:iter (x)	calculate for Low Pass Filter
a.lpf:zero ()	zeroing for Low Pass Filter

Tables

a.lpf

Low Pass Filter

Fields:

• alpha filter coefficient [0,1]
• output filter output

Methods

a.lpf:new (fc, ts)

constructor for Low Pass Filter

Parameters:

• fc number cut-off frequency unit(hz)
• ts number sampling time unit(s)

Returns:

a.lpf Low Pass Filter userdata

a.lpf:gen (fc, ts)

generate for Low Pass Filter

Parameters:

• fc number cut-off frequency unit(hz)
• ts number sampling time unit(s)

Returns:

a.lpf Low Pass Filter userdata

a.lpf:iter (x)

calculate for Low Pass Filter

Parameters:

• x number input value

Returns:

number output value

a.lpf:zero ()

zeroing for Low Pass Filter

Returns:

a.lpf Low Pass Filter userdata