Enhanced dynamic range RF pulse measurement system

摘要

The enhanced dynamic range RF pulse measurement system accepts an RF source for spectral analysis. The system includes an RF splitter accepting the RF source under analysis as input. The split output connects to identical precision timing insertion units (TIU) 1 and 2, each time tagging its respective RF signal stream. TIU 1 feeds a first real-time spectrum analyzer (RSA 1) set for strong signals at an exemplary −3.00 dBm reference level. TIU 2 feeds a second real-time spectrum analyzer (RSA 2) set for weak signals at an exemplary −15.00 dBm reference level. Outputs of RSA 1 and RSA 2 are then fed to a multi-channel recorder which records the respective time tagged RF signal streams. For each signal stream real-time PDW processing is performed. Output of the recorder feeds a workstation that for any given time tag selects and processes the channel having the highest quality signal.

主权项

1. An enhanced dynamic range RF (radio frequency) pulse measurement system, comprising:
an RF splitter having an input terminal adapted for receiving an RF signal and having at least two output terminals, the splitter having a circuit for splitting the received RF signal into identical copies of the received RF signal at the output terminals; a first RF receiver operably connected to the RF splitter for receiving a first copy of the received RF signal, the first RF receiver having a reference signal strength set to process the received RF signal within a first dynamic power range; a second RF receiver operably connected to the RF splitter for receiving a second copy of the received RF signal, the second RF receiver having a reference signal strength set to process the received RF signal within a second dynamic power range; a first RF stream recorder operably connected to the first RF receiver, the first RF stream recorder having means for making a first recording of the RF signal processed within the first dynamic power range by the first RF receiver; a second RF stream recorder operably connected to the second RF receiver, the second RF stream recorder having means for making a second recording of the RF signal processed within the second dynamic power range by the second RF receiver; and means for selecting from and combining segments of the first recording and the second recording to provide a noise-free representation of the received RF signal over a wide dynamic power range and a wide RF bandwidth.