Abstract: In an FMCW distance measurement process, a wave train of carrier frequency f.sub.0 is modulated with a time function f(t) and subdivided into a transmission signal and into a reference signal in deterministic phase relationship with the transmission signal; the transmission signal is sent on a transmission section to be measured and the reference signal is supplied to a phase difference-forming arrangement; the signal reflected in the transmission section with a delay that corresponds to propagation time .tau. is also supplied as a reception signal to the phase difference-forming arrangement that forms the time difference function .theta.(t) between the phases of reference and reception signals; the phase difference function .theta.(t) is separately evaluated in a continuous fraction .theta..sub.= that corresponds to the carrier frequency f.sub.0 and in an alternating fraction .theta..sub.- (t) that corresponds to the modulation time function f(t); and the propagation time .tau.