Appendix D: Sample Waveform Library

Linear Frequency Sweep

Made with the equation editor.

(LIN_SWP.WFM)

 

Figure D(7: Linear Frequency Sweep Formula and Waveform

Constants

k0 ￿s t￿￿ sw￿￿p p￿r￿o￿ ￿n￿ k1 ￿n￿ k2 ￿r￿ t￿￿ st￿rt￿n￿ ￿n￿ ￿n￿￿n￿

 

￿r￿qu￿n￿￿￿s.

 

 

Description

￿￿￿s w￿v￿￿orm ￿￿n ￿￿ ￿xpr￿ss￿￿ ￿￿n￿r￿lly ￿y t￿￿ ￿ollow￿n￿ ￿ormul￿.

 

 

 

￿

 

 

t

 

￿

 

V￿t￿ + sin 2pf t ) 2pf

 

￿

t

dt ) f

0￿

 

2

 

 

 

 

￿

1

T

 

 

 

 

￿

 

 

 

￿

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

H￿r￿ ￿1 ￿s t￿￿ st￿rt￿n￿ ￿r￿qu￿n￿y, ￿2 ￿s t￿￿ ￿n￿￿n￿ ￿r￿qu￿n￿y, ø0 ￿s t￿￿ ￿n￿t￿￿l

 

p￿￿s￿, ￿n￿ ￿ ￿s t￿￿ sw￿￿p p￿r￿o￿.

 

 

￿o ￿ssur￿ t￿￿t t￿￿ p￿￿s￿s m￿t￿￿ w￿￿n t￿￿s w￿v￿￿orm ￿s ￿t￿r￿t￿￿, t￿￿ sw￿￿p

 

p￿r￿o￿ ￿s s￿t to ￿￿ ￿los￿ to ￿n ￿nt￿￿￿r mult￿pl￿ o￿ t￿￿ r￿￿￿pro￿￿l o￿ t￿￿

 

￿v￿r￿￿￿ ￿r￿qu￿n￿y

 

 

 

 

 

 

f1 ) f2

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Settings

W￿v￿￿orm po￿nts: 16000

 

 

 

 

 

 

Clo￿k ￿r￿qu￿n￿y: 10 MHz

 

 

 

 

 

 

Output t￿m￿: 1.6 ms

 

 

 

 

 

D(10

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