Accession Number : ADD014240

Title :   High Resolution, Wide Band Chirp-Z Signal Analyzer.

Descriptive Note : Patent Application, Filed 25 Sep 89,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Skudera, William J , Jr ; Konig, Charles E

Report Date : 25 Sep 1989

Pagination or Media Count : 14

Abstract : Wide band and narrow band Chirp-Z channels are interfaced to enhance signal analysis resolution for the signal's individual component wave forms over a wide signal bandwidth. The frequency characteristic of a selected component wave form is matched to the sweeping local oscillator and filter frequency parameters of the narrow band channel in accordance with the relative position occupied by the frequency characteristic of the selected component wave form in the frequency segregated time domain of said wide band channel. In one preferred embodiment, a mixer and a voltage controlled oscillator are utilized to accomplish the frequency matching and in another embodiment, a band-pass filter precisely defines the bandwidth of the selected component wave form. For still another embodiment, the voltage input to the voltage control oscillator is controlled in accordance with the difference in frequency between the selected component wave form and said narrow band channel. Patent applications. (RRH)

Descriptors :   *BANDPASS FILTERS, *CHANNELS, *PATENT APPLICATIONS, *SIGNALS, *VOLTAGE CONTROLLED OSCILLATORS, BROADBAND, CHIRP RADAR, FILTERS, FREQUENCY, HIGH RESOLUTION, INPUT, MATCHING, NARROWBAND, PARAMETERS, POSITION(LOCATION), RESOLUTION, VOLTAGE, WAVEFORMS, WAVES

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE