| 摘要 |
The invention relates to a method and sensor system for measuring the transmission properties of a first transmission path (T1) of a feedback compensation-based measuring system, between a first transmitter (H1) and a receiver (D1). In the receiver (D1), in addition to the emitted transmission signal (I2) of the first transmitter (H1), a superimposed compensation signal (I2) of a compensation transmitter (K) is captured. A supply signal (S5) for the first transmitter (H1) and a receiving output signal (S1) of the receiver (D) each form a vector in a pre-Hilbert space. Due to the claimed method, a Hilbert projection takes place between the receiving output signal (S1) of the receiver (D) and the supply signal (S5) such that a projection image signal (S10) is produced. An output signal (S4) is formed from the projection image signal (S10). Due to an at least partial retransformation of the output signal (S4) with the supply signal (S5), a presignal (S6) is formed. Preferably, the retransformation takes place by means of a multiplication. A compensation signal (S3) for supplying the compensation transmitter (K) is generated from the formed presignal (S6) in order to obtain feedback control of the receiver output signal (S1). |
