Phase Coded. T u. Separation in Frequency. Staggered. Separation in Time. T 1. T 2. Unambiguous velocity V a ~ 1 ⁄ T u = 1/( T 2 – T 1 ). “Cleared range” R a ~ 2T u = T 1. Phase Coded. T u. Separation in Frequency. Staggered. Separation in Time. T 1. T 2.By jodie
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Staggered PRT Update. Sebastián Torres CIMMS/NSSL. Technical Interchange Meeting Spring 2008. Staggered PRT Evolution. 1976: Application to weather radars Sirmans, Zrnić, and Bumgarner 1985: Statistical performance Zrnić and Mahapatra. Sebastián NOT thinking about staggered PRT in 1976.
Staggered PRT Practical Considerations. Sebastian Torres CIMMS/NSSL Technical Interchange Meeting Spring 2005. BATCH MODE. STAGGERED PRT. Outline. Staggered PRT refresher Choosing the PRTs Away with the Batch Mode! Ground clutter filter performance.
VCPs for Staggered PRT. Sebastián Torres and David Warde CIMMS/NSSL. Data Quality MOU – Technical Interchange Meeting Fall 2008. Outline. Designing VCPs for Staggered PRT (recap) Performance indicators Test VCPs 14 and 15 (recap) Design criteria Benefits of using shorter PRTs
Compiler-Generated Staggered Checkpointing. Alison N. Norman Department of Computer Sciences The University of Texas at Austin. Sung-Eun Choi Los Alamos National Laboratory. Calvin Lin Department of Computer Sciences The University of Texas at Austin. The Importance of Clusters.
Staggered PRT for NEXRAD. Dr. Sebastian Torres CIMMS/NSSL. A presentation to the Data Quality Team June 15, 2007. Range and Velocity Ambiguities. Doppler Dilemma: r a v a = c l /8 NEXRAD specifications l ≈ 10 cm, r a = 230 km Overlaid echoes are more likely with shorter PRTs
Staggered PRT ground clutter filtering. Svetlana Bachmann November 20, 2007. Parameter q Recollect q… Motivation to change q… qGMAP… How to use GMAP with SPRT… New table q3D… Performance evaluation GCF with GMAP, TABL, q3D… Finding error & bias for power, velocity, width…
Staggered PRT Update Part I. Sebastián Torres and David Warde CIMMS/The University of Oklahoma and National Severe Storms Laboratory/NOAA. NEXRAD TAC Norman, OK 29 August, 2012. Why Staggered PRT?. Less “Purple haze” : larger r a Less Velocity aliasing : larger v a.
Staggered PRT Algorithm Update. Sebastian Torres and David Warde CIMMS/University of Oklahoma and NSSL/NOAA. Data Quality MOU – Technical Interchange Meeting Norman, OK 1 December, 2009. SPRT Algorithm Evolution. 2003 : 2/3 PRT ratio with DC filter NSSL Report 7
VCPs for Staggered PRT. Sebastián Torres and David Warde CIMMS/NSSL. Data Quality MOU – Technical Interchange Meeting Spring 2009. Outline. Designing VCPs for SPRT (recap) Importance Performance indicators PRT choice Recommended VCPs for SPRT Design criteria Trade-offs