It looks very similar to a M-11 Shtorm SAM (SA-N-3 Goblet). It's quite an interesting system: I searched for the info on its SNR Grom (Head Lights) ... PVO Guns page says say, it had two monopulse antennas working simultaneously on different frequencies as an ECCM measure... Hpasp wrote that the guidance was actually the Narrow Beam/LORO combo as in Volkhov (and indeed it looks similar). So I am confused which version is correct