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1. A method for distance determination between two objects, wherein a first object of the two objects transmits at least one first-object signal with different first-object frequencies, and wherein the second object receives the at least one first-object signal of the first object, wherein the second object of the two objects transmits at least one second-object signal with different second-object frequencies, wherein at least one third object receives the at least one of the at least one first-object signal and the second-object signal, and wherein the at least one third object transmits at least one third-object signal with different third-object frequencies, and wherein at least one of the first object and the second object receives the at least one third-object signal of the third object, and wherein the first object receives the at least one second-object signal of the second object, wherein the distance between the at least one of the first object and the second object, and the first object and the third object is determined based on each of the at least one first-object signal, second-object signal, and third-object signal, wherein the second object in the second-object signal changes phase-coherently between at least two second-object frequencies, or changes such that a phase difference upon frequency change is known, or the phase difference upon the frequency change is made known, and in that the at least one third object in the third-object signal changes phase-coherently between at least two third-object frequencies, or changes such that the phase difference upon frequency change is known, or the phase difference upon frequency change is made known.
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