In Boris Chertok's "Rockets and People" vol 3 p 366[1], there's an aside about how Soviet ICBMs with MIRV did targeting by comparing on-board radar with a digit

In Boris Chertok's "Rockets and People" vol 3 p 366[1], there's an aside about how Soviet ICBMs with MIRV did targeting by comparing on-board radar with a digital map of topographical features in the 70's. [1] free to download from NASA: http://www.nasa.gov/connect/ebooks/rockets_people_vol3_detail.html#.VRiSyxocpjE http://www.nasa.gov/connect/ebooks/rockets_people_vol3_detai...