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--- rt_improvement_by_post-processing [2019/01/02 14:34]
vschaefer created
+++ rt_improvement_by_post-processing [2019/02/06 14:00]
vschaefer [Post-Processing of RT Oscillation Data]
@@ Line 14: / Line 14: @@
 {{:bild_zu_basic_principle.png?direct&400|}}
-===== Post-Processing of RT Oscillation Data =====
-  * idea: resonant frequency ω0 and decay time constant λ, are fixed by hardware
-  * omission of inexact peak detector
-<color #ed1c24>-> improved RT resolution by digitization of oscillation data, FFT filtering and envelope fit
-</color>
-**Algorithm for bunch charge Determination:**
-  * FFT filtering and offset correction
-  * identification of maxima and minima until pre-set S/N value crossed
-  * robust estimator of exponential decay curve
-  * evaluation of amplitude ~ total pulse charge
-===== Bunch Charge Determination =====
-{{::bunch_charge_determination.png?direct&400|}}
-[from: “A High Stability Intensity Monitoring System”, M. A. Clarke-Gayther, RAL, Didcot (UK), presented on EPAC, Sitges (E) 1996]
-{{::bild_zu_bunch_charge.png?direct&400|}}
-{{::bild1.png?direct&400|}}

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