FIELD: radio engineering. SUBSTANCE: superheterodyne receiver has low-noise amplifier 1, band-pass filter 2, first and third mixers 3 and 12, first and second intermediate frequency amplifiers 4 and 13, synchronous-phase demodulator 5 and converter 6 with deviation subtraction including second and third mixers 7 and 9 and second intermediate frequency amplifiers 8 and 10, controlling local oscillator 4 incorporating frequency synthesizer 15 and unit 16 for selection of channels. Connection of converter with deviation subtraction across output of high-frequency path makes it possible to simplify design of receiver in general. EFFECT: simplified design. 1 dwg
Title | Year | Author | Number |
---|---|---|---|
CELLULAR TV BROADCASTING SYSTEM | 1999 |
|
RU2152693C1 |
DEVICE FOR RESTING OF SERVICEABILITY OF SUPERHETERODYNE RECEIVER | 1988 |
|
RU2013008C1 |
DEVICE OF RADAR LOCATION STATION WITH CONTINUOUS LINEAR-FREQUENCY-MODULATED SIGNAL AND SYNTHESIS OF APERTURE | 2017 |
|
RU2660450C1 |
METHOD FOR TRANSMITTING AND RECEIVING QUADRATURE AMPLITUDE MODULATION SIGNALS | 2022 |
|
RU2794314C1 |
MONOPULSE RADAR OF MILLIMETRE RANGE | 2015 |
|
RU2600109C1 |
MARKER OF RADIO FREQUENCY IDENTIFICATION OF OBJECT AND SYSTEM AND METHOD FOR DETECTION OF COORDINATES AND CONTROL OF OBJECTS | 2007 |
|
RU2371734C2 |
METHOD FOR BEAM CONTROL IN ACTIVE PHASED ARRAY ANTENNA | 2023 |
|
RU2805384C1 |
RADIO TRANSMISSION LINE USING PHASE-KEYED NOISE- LIKE SIGNALS | 1999 |
|
RU2156541C1 |
DEVICE FOR RECEIVING SIGNALS FROM SATELLITE RADIO NAVIGATION SYSTEMS | 1999 |
|
RU2159448C1 |
DEVICE FOR RECEPTION OF SIGNALS OF SATELLITE POSITIONING SYSTEMS | 1998 |
|
RU2145422C1 |
Authors
Dates
1994-06-15—Published
1991-01-08—Filed