Demonstration of a Combined Active/Passive L-Band Microwave Remote Sensing Airborne Instrument

Ogut, Mehmet; Misra, Sidharth; Bosch-Lluis, Xavier; Ramos-Pérez, Isaac; Williamson, Ross; Chae, Chun-Sik; Colliander, Andreas; Yueh, Simon H.

doi:10.1109/jstars.2024.3404852

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

2024

DOI: 10.1109/jstars.2024.3404852

|View full text |Cite

Demonstration of a Combined Active/Passive L-Band Microwave Remote Sensing Airborne Instrument

Mehmet Ogut,

Sidharth Misra,

Xavier Bosch-Lluis

et al.

Abstract: The Passive Active L-Band System (PALS) is an airborne microwave instrument suite that combines a separate radar and radiometer airborne instrument with a common antenna. PALS has been used for salinity, wind speed, and soil moisture measurements, which is critical for calibration and validation of the Soil Moisture Active Passive (SMAP) satellite brightness temperature measurements. The combined 1.413 GHz radiometer and 1.26 GHz radar measurements can provide highaccuracy soil moisture measurements over veget… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Generation of short microwave pulse trains based on a hybrid mode-locked optoelectronic oscillator

Su,

Wu,

et al. 2024

Opt. Lett.

View full text Add to dashboard Cite

A novel approach, to the best of our knowledge, for generating short microwave pulse trains based on a hybrid mode-locked optoelectronic oscillator (HML-OEO) is proposed and demonstrated. In the proposed scheme, a saturable absorber (SA) device is inserted into the active mode-locked OEO (AML-OEO) to compress the pulse width of the microwave pulse trains. Numerical simulations and experimental results show that the HML-OEO generates a short microwave pulse train with a repetition rate of 98.994 kHz through fundamental frequency mode locking, and its pulse width is compressed by about 50% compared to the AML-OEO. Additionally, in the experiment, microwave pulse trains with different repetition rates are generated by second-, third-, fourth-, and fifth-order harmonic mode locking, respectively. Compared to the AML-OEO, the HML-OEO achieves pulse compression effects of 49.3%, 49.8%, 49.4%, and 49.9%, respectively. Notably, compared to the AML-OEO, the proposed scheme also exhibits outstanding performance in frequency stability.

show abstract

Generation of short microwave pulse trains based on a hybrid mode-locked optoelectronic oscillator

Su,

Wu,

et al. 2024

Opt. Lett.

View full text Add to dashboard Cite

show abstract

Salinity and Stratification at the Sea Ice Edge (SASSIE): an oceanographic field campaign in the Beaufort Sea

Drushka,

Westbrook,

Bingham

et al. 2024

Earth Syst. Sci. Data

View full text Add to dashboard Cite

Abstract. As our planet warms, Arctic sea ice coverage continues to decline, resulting in complex feedbacks with the climate system. The core objective of NASA's Salinity and Stratification at the Sea Ice Edge (SASSIE) mission is to understand how ocean salinity and near-surface stratification affect upper-ocean heat content and thus sea ice freeze and melt. SASSIE specifically focuses on the formation of Arctic Sea ice in autumn. The SASSIE field campaign in 2022 collected detailed observations of upper-ocean properties and meteorology near the sea ice edge in the Beaufort Sea using ship-based and piloted and drifting assets. The observations collected during SASSIE include vertical profiles of stratification up to the sea surface, air–sea fluxes, and ancillary measurements that are being used to better understand the role of salinity in coupled Arctic air–sea–ice processes. This publication provides a detailed overview of the activities during the 2022 SASSIE campaign and presents the publicly available datasets generated by this mission (available at https://podaac.jpl.nasa.gov/SASSIE, last access: 29 May 2024; DOIs for individual datasets in the “Data availability” section), introducing an accompanying repository that highlights the numerical routines used to generate the figures shown in this work.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Demonstration of a Combined Active/Passive L-Band Microwave Remote Sensing Airborne Instrument

Cited by 2 publications

References 37 publications

Generation of short microwave pulse trains based on a hybrid mode-locked optoelectronic oscillator

Generation of short microwave pulse trains based on a hybrid mode-locked optoelectronic oscillator

Salinity and Stratification at the Sea Ice Edge (SASSIE): an oceanographic field campaign in the Beaufort Sea

Contact Info

Product

Resources

About