FIG. 2 is a general block diagram of the basic sections of a frequency sweep generator embodying the features of the present invention; FIGS. 3 and 4, when placed side-by-side, constitute a more detailed block diagram of the major components of a frequency sweep generator embodying the fea...
In [Bill]’s case the receiver is a BitX homebrew transceiver, and the swept local oscillator is provided by his Foeltech signal generator. A neat touch comes in the ‘scope being synchronised by triggering on a marker frequency at the bottom of the range being swept. He’s created a vid...
when the sweep position moves past the point N on the boundary of the regular square 12 shown by the broken line, the comparator 38 issues a high-level output which is transmitted to the OR circuit 72 and then the sweep termination pulse generator 74 is similarly actuated to terminate the ...
FPGA controlled DDS based frequency sweep generation of high linearity for FMCW radar systems
hallmangeneratorraysweeprampvolts NATIONALRADIOASTRONOMYOBSERVATORYGreenBank,WestVirginiaElectronicsDivisionInternalReportNo.87RAMP/SWEEPGENERATORJ.RayHallmanJr.JULY1969NUMBEROFCOPIES:100RAMP/SWEEPGENERATORJ.RayHallman,Jr.1.IntroductionTheradiointerferencestaffhasexpressedaneedforapreciseslow-sweepgeneratorforusewiththefr...
The condenser of the sweep generator is normally short-circuited by a conducting valve which is held non-conducting for the duration of pulse 19, allowing the sweep potential to build up. The output of the sweep generator is fed to an amplifier 20 which is described in detail with reference...
On the other hand, a measurement controller U30 sweeps the frequency of the local oscillator 105 via a sweep signal generator 106 by a desired band so as to sweep a signal within a frequency region to be measured, and as a result, an input signal to be measured is measured by the ...
Transmitter 161 and receiver 163 of head end test unit 11 operate in conjunction as a tracking type signal generator. That is, local oscillators used in RF receiver section 163 (voltage controlled oscillators 132, 136) are also used to generate the RF signals to be transmitted over coaxial cab...