Simulation of radar target in radar set - using several spatially separated emitters fed by common oscillator

摘要

The arrangement for simulating a radar target as realistically as possible in respect of radiation properties has a receiving system which includes an angular reference aerial in the form of a conventional amplitude mono-pulse aerial. The difference/sum signals received by it are standardised through an amplification circuit. The angle reference system within the receiving system is adjusted to a fixed amplification factor. The emitters, which are fed from a single oscillator through electronically controlled damping sections, are also fed from an auxiliary oscillator, working in time or frequency multiplex, through another electronically controlled damping section, according to a signal obtained from comparing actual with required value.