Package: gr-iqbal (0.38.2-2 and others)

[ Source: gr-iqbal  ]

GNU Radio Blind IQ imbalance-estimator og korrektion

Den generelle ide er at undertrykke symmetriske aftryk udført af IQ imbalance i RX-stien for kvadraturmodtagere. Den består af to underblokke:

»IQ Bal Fix«: Denne anvender faktisk korrektion. Til en kompleks strøm. Korrektionsparametrene er kun størrelsesorden/fase og den faktiske korrektionsalgoritme er den samme som anvendt i udstry i USRP'en. Du kan enten specificere korrektionsparametrene manuelt på blokken eller sende dem via »messages«.

»IQ Bal Optimize«: Denne blokerer forsøg på blindt at detektere ubalancen ved at minimere korrelationen mellem venstre og højre del af spektrum. Se koden for »hvordan det gøres«. Den generelle ide er inspireret fra artikler fundet på internettet og måde nogle SDR-programarkiver opnår det samme (sdr# f.eks., selvom der er signifikante forskelle i den faktiske implementering).

Tags: Software Development: Libraries, Role: Development Library

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Download gr-iqbal

Download for all available architectures

Architecture	Version	Package Size	Installed Size	Files
alpha (unofficial port)	0.38-4+b4	76.0 kB	478.0 kB	[list of files]
amd64	0.38.2-2+b15	188.7 kB	1,273.0 kB	[list of files]
arm64	0.38.2-2+b15	180.7 kB	1,293.0 kB	[list of files]
armel	0.38.2-2+b15	179.0 kB	1,248.0 kB	[list of files]
armhf	0.38.2-2+b15	179.1 kB	1,208.0 kB	[list of files]
hppa (unofficial port)	0.38-4+b5	82.3 kB	470.0 kB	[list of files]
i386	0.38.2-2+b15	193.5 kB	1,268.0 kB	[list of files]
m68k (unofficial port)	0.38-4+b5	76.5 kB	407.0 kB	[list of files]
mips64el	0.38.2-2+b18	182.1 kB	1,301.0 kB	[list of files]
ppc64 (unofficial port)	0.38.2-2+b15	188.8 kB	1,359.0 kB	[list of files]
ppc64el	0.38.2-2+b15	189.2 kB	1,293.0 kB	[list of files]
riscv64 (unofficial port)	0.38.2-2+b9	180.9 kB	1,185.0 kB	[list of files]
s390x	0.38.2-2+b15	186.2 kB	1,273.0 kB	[list of files]
sparc64 (unofficial port)	0.38.2-2+b1	177.8 kB	2,129.0 kB	[list of files]
x32 (unofficial port)	0.38.2-2+b1	174.3 kB	1,132.0 kB	[list of files]