## 1 Introduction
Currently, there is no research on compensating the azimuth cutoff wavelength, which is the subject of this paper. The premise of this study is that networked satellites are needed to coordinate observations to obtain multidirectional SAR wave synchronization data. This requirement is because the azimuth cutoff degrees caused by different SAR observation directions are different, and the synchronization data with different cutoff degrees can be combined by weight to effectively compensate for the impact of the azimuth cutoff. At present, most satellites in orbit are geosynchronous orbit satellites. There is no angle between the orbits of the satellites. The simultaneous observation of multiple SARs in the same sea area cannot be achieved, and multiview synchronization data cannot be obtained. Therefore, it is necessary to acquire multiview synchronization data by means of SAR imaging simulations and carry out preresearch work on multiple SAR observation waves, which lays the foundation for future observations of networked SAR satellites. In general, ocean SAR imaging simulations can be separated into two methods. For the first method, ocean SAR data are simulated at the image level: By using certain equations, SAR imagery is numerically computed [18]. In 2009, [PERSON] et al. analyzed the influences of ocean wave parameters on SAR images and obtained ocean surface polarized SAR images [19]. In 2011, [PERSON] et al. simulated polarized ocean SAR images based on a random sea surface model and an electromagnetic scattering model [20]. Although this method avoids the calculation of complex raw SAR data, the method cannot comprehensively reflect the characteristics of the SAR system. The second method is to indirectly obtain ocean SAR images by simulating raw SAR echo signals. In 1998, [PERSON] et al. used the coordinate transformation method to obtain ocean scene SAR echoes [21]. In 2012, [PERSON] et al. studied the imaging simulation of ocean surfaces by missile-borne SARs in side-looking and squint modes [22]. In 2018, [PERSON] et al. studied the SAR imaging simulation of composite scenes in the squint mode [23]. The imaging method used in this paper is the second method, which has the advantages of not relying on the imaging model and high precision of the imaging results compared with the first method. However, most of the current studies are single-SAR imaging simulations, and the imaging simulation of multiple SARs has not been studied. In this paper, the imaging simulation of a network of satellites consisting of three SAR satellites was carried out on the basis of single-SAR imaging simulations. The main work of this paper is as follows: Aimed at the problem of the azimuth cutoff for ocean waves observed by a single SAR satellite, a network of SAR satellites with three SARs was simulated, and then, multiview SAR ocean wave synchronization data were simulated. The structure of this paper is as follows: In Section 2, the basic principles of single-SAR imaging simulation are introduced. In Section 3, the results of the imaging simulations are analyzed and then the simulation of networked SAR satellites is described. Section 4 presents a discussion. Conclusions are provided in the final section.