Design of High-Performance Survival Radios using Discrete Time Analog Signal Processing

In this project, we focused on the architectural and circuit-level design for a low cost, portable soldier radio with high survivability. We identified passive switched capacitor circuits as a suitable candidate for meeting these performance targets. We developed an architecture that uses a high dynamic range FFT to perform low amplitude signal detection in the presence of large jammers. Based on our analysis and modeling of non-idealities in switched capacitors, we were able to construct and simulate a sampled charge based 16 point FFT processor. The processor is able to compute the FFT of a 2GHz wideband input signal using only 1mW total power with a dynamic range exceeding 65dB without noise averaging and 90dB with noise averaging. This performance exceeds the requirements for signal detection in a typical wireless war theater communications scenario. (a) Papers published in peer-reviewed journals (N/A for none) List of papers submitted or published that acknowledge ARO support during this reporting period. List the papers, including journal references, in the following categories: (b) Papers published in non-peer-reviewed journals or in conference proceedings (N/A for none) 0.00 Number of Papers published in peer-reviewed journals: Number of Papers published in non peer-reviewed journals: (c) Presentations 0.00 Number of Presentations: 0.00 Non Peer-Reviewed Conference Proceeding publications (other than abstracts): Number of Non Peer-Reviewed Conference Proceeding publications (other than abstracts): Peer-Reviewed Conference Proceeding publications (other than abstracts): (d) Manuscripts Number of Peer-Reviewed Conference Proceeding publications (other than abstracts): Number of Manuscripts: