Risto Vehmas

13 papers C 4Journal 7Unranked 1
YearRankTypeTitle / Venue / Authors
2024 C conf
A Look at Spotlight Extended Dwell - A New Level of Information Content from Small-Satellite SAR.
IGARSS
Risto Vehmas, Ozan Dogan, Vladimir Ignatenko, Andrea Radius, Darren Muff, Pierre Leprovost, Matthew Nottingham, Patrik Vilja, Tino Seilonen, Maria Arbenina, Julio Castillo
2024 C conf
Informative Content Augmentation of ICEYE Spotlight Extended Dwell Images by Exploiting the Signal Phase.
IGARSS
Andrea Radius, Ozan Dogan, Risto Vehmas, Vladimir Ignatenko, Darren Muff, Pierre Leprovost, Matthew Nottingham, Patrik Vilja, Tino Seilonen, Maria Arbenina, Julio Castillo
2022 J jnl
Investigation of Environmental Effects on Coherence Loss in SAR Interferometry for Snow Water Equivalent Retrieval.
IEEE Trans. Geosci. Remote. Sens.
Jorge Jorge Ruiz, Juha Lemmetyinen, Anna Kontu, Riku Tarvainen, Risto Vehmas, Jouni Pulliainen, Jaan Praks
2022 J jnl
Range Sidelobe Level Reduction With a Train of Diverse LFM Pulses.
IEEE Trans. Aerosp. Electron. Syst.
Nadav Neuberger, Risto Vehmas
2021 J jnl
A Costas-Based Waveform for Local Range-Doppler Sidelobe Level Reduction.
IEEE Signal Process. Lett.
Nadav Neuberger, Risto Vehmas
2021 C conf
Analysis of Snow Coherence Conservation for SWE Retrieval at L-, S-, C-and X-Bands.
IGARSS
Jorge Jorge Ruiz, Juha Lemmetyinen, Anna Kontu, Riku Tarvainen, Jouni Pulliainen, Risto Vehmas, Jaan Praks
2021 J jnl
Dimension-Reduced Rx Beamforming Optimized for Simultaneous Detection and Estimation.
IEEE Trans. Aerosp. Electron. Syst.
Nadav Neuberger, Risto Vehmas, Joachim H. G. Ender
2021 J jnl
Inverse Synthetic Aperture Radar Imaging: A Historical Perspective and State-of-the-Art Survey.
IEEE Access
Risto Vehmas, Nadav Neuberger
2021 — conf
On Maximum Likelihood DOA Estimation for Space Surveillance Radar.
EUSIPCO
Nadav Neuberger, Risto Vehmas
2020 J jnl
SodSAR: A Tower-Based 1-10 GHz SAR System for Snow, Soil and Vegetation Studies.
Sensors
Jorge Jorge Ruiz, Risto Vehmas, Juha Lemmetyinen, Josu Uusitalo, Janne Lahtinen, Kari Lehtinen, Anna Kontu, Kimmo Rautiainen, Riku Tarvainen, Jouni Pulliainen, Jaan Praks
2018 — —
Computational Algorithms for Improved Synthetic Aperture Radar Image Focusing.
Risto Vehmas
2018 J jnl
Data-Driven Motion Compensation Techniques for Noncooperative ISAR Imaging.
IEEE Trans. Aerosp. Electron. Syst.
Risto Vehmas, Juha Jylhä, Minna Väilä, Juho Vihonen, Ari Visa
2018 C conf
Season -Length Observations of Active and Passive Microwave Signatures of Snow Cover in a Boreal Forest Environment.
IGARSS
Juha Lemmetyinen, Anna Kontu, Leena Leppänen, Juho Vehvilainen, Risto Vehmas, Qinghuan Li, Kimmo Rautiainen, Jouni Pulliainen