# Experimental Evaluation of a Low-Power Ultra-Wideband Receiver for Spectrum Sensing

arXiv: https://arxiv.org/abs/2609.22134 · HTML: https://mlsanity.com/paper/2609.22134/

## Key facts

- No citing papers in the map yet (data through 14 Oct 2026).
- Builds on 2 of its 9 references that are in the map.
- First posted on arXiv 24 Aug 2026.

## Builds on (most cited first, 2 of 2)

- [Joint Communication and Sensing: Models and Potential of Using MIMO](https://mlsanity.com/paper/2205.09409/) (2022)
- [Walsh-domain Neural Network for Power Amplifier Behavioral Modelling and Digital Predistortion](https://mlsanity.com/paper/2402.09964/) (2024)

## Abstract (arXiv)

Walsh-sequence-based receiver architectures offer an alternative approach for the reception and reconstruction of multiple simultaneous RF signals over wide bandwidths. While previous works have focused on the architecture and theoretical operation of Walsh-domain processing, limited experimental results have been reported so far on hardware operation under realistic conditions. This paper presents the experimental evaluation of a Walsh-sequence-based receiver prototype. A measurement campaign was conducted under various signal placement, interference, and receiver configuration scenarios. Reconstructed spectra, Walsh-lane power spectral densities (PSDs), and Error Vector Magnitude (EVM) measurements were used to investigate Walsh-domain signal representation, interference effects, and receiver performance. Finally, dense- spectrum experiments involving up to ten simultaneously active signals demonstrate the potential of the architecture for low power wideband spectrum sensing applications.