A Search Method for Binary Codes Compressed to Several Sub-pulses Using Quantum Annealing and Search Experiment by Ising Machine

Abstract

Pulse compression radar uses codes for phase modulation. Barker codes and optimal binary codes are examples of binary codes with small sidelobes. Binary codes compressed to several sub-pulses have also been proposed. One problem with searching for binary codes is that as the code length increases, so does the search time. Therefore, we propose a search method for binary codes compressed to several sub-pulses using quantum annealing. In addition, a search experiment using the proposed method was conducted using an Ising machine inspired by quantum annealing technology. As a result, it was found that the proposed method can search for binary codes compressed to several sub-pulses.