Monitoring device
The invention discloses a monitoring device, which comprises a first-stage low noise amplifier, a radio frequency filter, a second-stage low noise amplifier, a radio frequency adjustable attenuator, a radio frequency amplifier, a frequency mixer, a first-stage intermediate-frequency filter, an inter...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention discloses a monitoring device, which comprises a first-stage low noise amplifier, a radio frequency filter, a second-stage low noise amplifier, a radio frequency adjustable attenuator, a radio frequency amplifier, a frequency mixer, a first-stage intermediate-frequency filter, an intermediate-frequency adjustable attenuator, an intermediate-frequency amplifier, and a second-stage intermediate-frequency filter. Received signals are processed, and the signals are transmitted to an analog-to-digital converter finally. Through reasonably adjusting the design structure of the monitoring device, different design assemblies are adopted, system sensitivity can be effectively improved, and the dynamic range is enhanced. |
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