Acquiring ISAR images using measurement instruments

We introduce the image acquisition from X-band Inverse Synthetic Aperture Radar (ISAR) system using measurement instruments for chirp generation and signal modulation in this paper. We design and develop a power amplifier and a signal demodulator, but we use an Arbitrary Waveform Generator (N8241A, Keysight) for chirp generation and a Vector Signal Generator (E8267D, Keysight) for signal modulation. Moreover, “Andale”, the Commercial-Off-The-Shelf (COTS) for data recording and Matlab for image post-processing are used. Then, we integrate all together for ISAR image acquisition and acquire vivid ISAR images. The final resolutions of acquired ISAR images are 0.41m range, 0.14m azimuth, the PSLRs are -22.8dB range, -22.3dB azimuth, the ISLRs are -20.2dB range, -17.1dB azimuth, better than the target specification.