| QEDesign濾波器設計 |
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
| |
| QEDesign
是一個非常好用的濾波器設計軟體，QEDesign的產品系列可分為QEDesign
Lite、QEDesign1000和QEDesign2000這三種產品都可以解決在設計FIR或IIR濾波器上所遇到的問題。 |
|
| 以下表格是說明不同版本的QEDesign所包含的特殊函數： |
|
Supported
Platforms
|
|
Platform
|
QEDesign
family member
|
|
QEDesign
Lite
student version
|
QEDesign
1000
professional
|
QEDesign
2000
Premier
|
|
Win95/NT
|
Yes
|
Yes
|
Yes
|
|
UNIX
|
No
|
No
|
Yes
|
|
|
Supported
Filter Types
|
|
Type
of Filter
|
QEDesign
family member
|
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
|
Lowpass
|
Yes
|
Yes
|
Yes
|
|
Highpass
|
Yes
|
Yes
|
Yes
|
|
Bandpass
|
Yes
|
Yes
|
Yes
|
|
Bandstop
|
Yes
|
Yes
|
Yes
|
|
Differentiator
|
No
|
Yes
|
Yes
|
|
Multiband
|
No
|
Yes
|
Yes
|
|
Hilbert
Transformer
|
No
|
Yes
|
Yes
|
|
Arbitrary
Magnitude (FIR)
|
No
|
Yes
|
Yes
|
|
Halfband
|
No
|
Yes
|
Yes
|
|
Raised
Cosine
|
No
|
Yes
|
Yes
|
|
Root
Raised Cosine
|
No
|
Yes
|
Yes
|
|
Arbitrary
Group Delay
|
No
|
Yes
|
Yes
|
|
|
Maximum
Filter Order
|
|
Type
of Filter
|
QEDesign
family member
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
|
IIR
|
12th
order
|
80th
order
|
200th
order
|
|
FIR
with windows
|
128
|
2048
|
100,000
|
|
Equiripple
FIR
|
64
|
1024
|
50,000
|
Equiripple
limit is the same as FIR for all
|
|
IIR
Analog Prototypes
|
|
Type
of Filter
|
QEDesign
family member
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
|
Butterworth
|
Yes
|
Yes
|
Yes
|
|
Tschebyscheff
|
Yes
|
Yes
|
Yes
|
|
Inverse
Tschebyscheff
|
Yes
|
Yes
|
Yes
|
|
Elliptic
|
Yes
|
Yes
|
Yes
|
|
Bessel
|
Yes
|
Yes
|
Yes
|
|
|
Digital
Transformation Methods
|
|
Method
|
QEDesign
family member
|
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
|
Bilinear
|
Yes
|
Yes
|
Yes
|
|
Impulse
Invariant
|
No
|
Yes
|
Yes
|
|
Matched
Z-Transform
|
No
|
No
|
Yes
|
|
|
IIR
Realization Methods for bilinear and matched
z-transform designs
|
|
Method
|
QEDesign
family member
|
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
|
Cascade
|
Yes
|
Yes
|
Yes
|
|
Parallel
|
No
|
No
|
Yes
|
|
Ratio
of polynomials
|
No
|
No
|
Yes
|
|
|
FIR
Window Functions
|
|
Window
Function
|
QEDesign
family member
|
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
|
Rectangular
|
Yes
|
Yes
|
Yes
|
|
Triangular
|
Yes
|
Yes
|
Yes
|
|
Hanning
|
Yes
|
Yes
|
Yes
|
|
Hamming
|
Yes
|
Yes
|
Yes
|
|
Blackman
|
Yes
|
Yes
|
Yes
|
|
Kaiser
|
Yes
|
Yes
|
Yes
|
|
Exact
Blackman
|
No
|
Yes
|
Yes
|
|
3
Term Cosine
|
No
|
Yes
|
Yes
|
|
3
Term Cosine with continuous 3rd Derivative
|
No
|
Yes
|
Yes
|
|
Minimum
3 Term Cosine
|
No
|
Yes
|
Yes
|
|
4
Term Cosine
|
No
|
Yes
|
Yes
|
|
4
Term Cosine with continuous 5th Derivative
|
No
|
Yes
|
Yes
|
|
Minimum
4 Term Cosine
|
No
|
Yes
|
Yes
|
|
Good
4 Term Blackman Harris
|
No
|
Yes
|
Yes
|
|
Harris
Flat Top
|
No
|
Yes
|
Yes
|
|
Dolph-Tschebyscheff
|
No
|
Yes
|
Yes
|
|
Taylor
|
No
|
Yes
|
Yes
|
|
Gaussian
|
No
|
Yes
|
Yes
|
|
|
System
Analysis
|
|
Domain
Type
|
QEDesign
family member
|
|
QEDesign
Lite
|
QEDesign
1000
|
QEesign
2000
|
|
Z-Domain
transfer function
|
No
|
Yes
|
Yes
|
|
S-Domain
transfer function
|
No
|
Yes
|
Yes
|
|
|
Compensation
Features
|
|
Features
|
QEDesign
family member
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
|
D
to A conversion
|
No
|
Yes
|
Yes
|
|
Comb
Filter Compensation
|
No
|
Yes
|
Yes
|
|
Phase
Equalization
|
No
|
Yes
|
Yes
|
|
|
Plot
Options
|
|
Plot
Type
|
QEDesign
family member
|
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
|
Magnitude
|
Yes
|
Yes
|
Yes
|
|
Log
Magnitude
|
Yes
|
Yes
|
Yes
|
|
Poles
and Zeros
|
Yes
|
Yes
|
Yes
|
|
Phase
|
Yes
|
Yes
|
Yes
|
|
Group
Delay
|
Yes
|
Yes
|
Yes
|
|
Impulse
Response
|
Yes
|
Yes
|
Yes
|
|
Step
Response
|
No
|
Yes
|
Yes
|
|
Logarithmic
Frequency Scale
|
No
|
Yes
|
Yes
|
|
|
Miscellaneous
|
|
Features
|
QEDesign
family member
|
|
QEDesign
Lite
|
QEDesign
1000
|
QEDesign
2000
|
|
Graphical
Placement of Poles and Zeros with simultaneous display
of system response
|
No
|
No
|
Yes
|
|
Quad
Precision Calculations for critical designs
|
No
|
No
|
Yes
|
|
|
|
