Abstract: A reflective device for an optical measuring system and for arranging in a measuring object, including an optical deflection device and a retroreflector. The deflection device can deflect a light beam at the optical deflection device from an incident axis. The retroreflector can reflect the beam parallel to its incoming direction for each of various incoming directions of a light beam onto the retroreflector. The reflective device can be arranged in the measuring object such that a measuring beam of the optical measuring system, pointed at the measuring object and arriving at the optical deflection device in a first direction, is deflected by the optical deflection device onto the retroreflector in a different, second direction and, following reflection at the retroreflector, is deflected by the optical deflection device in reverse parallel to the first direction. An optical measuring system, a flying object and a flying object system are further described.

Abstract: A reflective device for an optical measuring system and for arranging in a measuring object, including an optical deflection device and a retroreflector. The deflection device can deflect a light beam at the optical deflection device from an incident axis. The retroreflector can reflect the beam parallel to its incoming direction for each of various incoming directions of a light beam onto the retroreflector. The reflective device can be arranged in the measuring object such that a measuring beam of the optical measuring system, pointed at the measuring object and arriving at the optical deflection device in a first direction, is deflected by the optical deflection device onto the retroreflector in a different, second direction and, following reflection at the retroreflector, is deflected by the optical deflection device in reverse parallel to the first direction. An optical measuring system, a flying object and a flying object system are further described.

Abstract: A signal acquisition and distance variation measurement system for laser ranging interferometers comprising a signal acquisition unit. This unit comprises a frequency detection subsystem to detect the frequency of a received laser beam measurement signal which is buried in noise, wherein the subsystem comprises an acquisition subsystem with a wavelet packet decomposition unit and a phase/frequency detector PLL; a main PLL unit being coupled to the frequency detection subsystem for receiving the detected frequency of the measurement signal for phase estimation of the measurement signal; and a phasemeter band detection subsystem for detecting whether the measurement signal frequency is higher or lower than a reference signal frequency of a reference laser beam by operating a known change to the frequency of the reference signal and measuring the consequent change in the frequency of an interference signal for having the phase of reference signal locked to the measurement signal phase.

Abstract: A signal acquisition and distance variation measurement system for laser ranging interferometers comprising a signal acquisition unit. This unit comprises a frequency detection subsystem to detect the frequency of a received laser beam measurement signal which is buried in noise, wherein the subsystem comprises an acquisition subsystem with a wavelet packet decomposition unit and a phase/frequency detector PLL; a main PLL unit being coupled to the frequency detection subsystem for receiving the detected frequency of the measurement signal for phase estimation of the measurement signal; and a phasemeter band detection subsystem for detecting whether the measurement signal frequency is higher or lower than a reference signal frequency of a reference laser beam by operating a known change to the frequency of the reference signal and measuring the consequent change in the frequency of an interference signal for having the phase of reference signal locked to the measurement signal phase.