1. CI coding of reference signals is disclosed in US 6331837 and US 7430257. 2. The ground stations simultaneously receive the 50MHz reference signal and the 900MHz transponder signal. 3. This microphone is the source of the reference signal . 4. This wobble is further modulated with a timecode reference signal containing minutes, seconds and frames. 5. Assume that initially the oscillator is at nearly the same frequency as the reference signal . 6. This error is based on the difference between a reference signal and the input signal. 7. The standard is multiplied to 50MHz and broadcast as a reference signal to the receiver sites. 8. The key to a reference signal is that the transmit location of that signal is known. 9. In this example, an array tracksig is assumed to contain a reference signal to be tracked. 10. The harmonic mixer turns the reference signal into an impulse train that is rich in harmonics.
