Ya_disko_sar -

If this is a title in another language or a specific niche acronym, it hasn't reached broad indexing in English-language academic repositories.

The "sar" suffix often refers to Synthetic Aperture Radar , a type of radar used to create 2D images or 3D reconstructions of objects. ya_disko_sar

The "ya_disko" prefix might be a reference to Yandex Disk (often abbreviated as "Ya.Disk"), a popular cloud storage service. This suggests the term could be a specific folder or file identifier hosted on that platform. If this is a title in another language