1.49. doHrsQDCFast

Full Name:	herschel.hifi.pipeline.hrs.DoHrsQDCFastTask
Alias:	doHrsQDCFast
Type:	Java Task -
Import:	from herschel.hifi.pipeline.hrs import DoHrsQDCFastTask
Category:	HIFI/Pipeline/HRS Pipeline

Description

Step5a: Task which corrects roughly the quantisation distortion of the HRS correlation functions.

Needs the CalHrsQDCFull calibration product as input, and multiply the channels by a correction factor, except for the channel0. IMPORTANT NOTE : this Task can be used in place of DoHrsQDCFull for performance reasons, as for QLA for instance, but the quality of the spectra obtained at the end of the HRS pipeline is degraded.

Example

Example 1: In HIPE

from herschel.hifi.pipeline.hrs import *
htp = HifiTimelineProduct(df, hk)
doHrsSubbands(htp=htp)
doHrsOffsetPow(htp=htp)
doHrsNorm(htp=htp)
doHrsQDCFast(htp=htp, cal=calHrsQDCFast)

API Summary

Jython Syntax
`doHrsQDCFast(htp=htp, cal=calHrsQDCFast)`

Properties
`HifiTimelineProduct htp [INOUT, MANDATORY, default=No default value]`
`CalHrsQDCFast cal [INPUT, MANDATORY, default=No default value]`

API details

Properties

`HifiTimelineProduct htp [INOUT, MANDATORY, default=No default value]`
	The HifiTimelineProduct which contains the HRS correlation functions.

`CalHrsQDCFast cal [INPUT, MANDATORY, default=No default value]`
	The input calibration product which contains the Fast Quantisation Distortion Correction factor.

History

2005-04-28 - OCJ: : jide example corrected
2006-05-17 - OCJ: : CompositeDataset replaced by HifiVectorDataset
2006-09-11 - OCJ: : HifiVectorDataset replaced by HifiPipelineProduct
2006-12-07 - OCJ: : HifiPipelineProduct replaced by HifiTimelineProduct
2010-11-04 - OCJ: Old examples from Jide removed