CN202978928U - Broadband high speed frequency hopping intermediate frequency receiver - Google Patents
Broadband high speed frequency hopping intermediate frequency receiver Download PDFInfo
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- CN202978928U CN202978928U CN 201220575059 CN201220575059U CN202978928U CN 202978928 U CN202978928 U CN 202978928U CN 201220575059 CN201220575059 CN 201220575059 CN 201220575059 U CN201220575059 U CN 201220575059U CN 202978928 U CN202978928 U CN 202978928U
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Abstract
The utility model provides a broadband high speed frequency hopping intermediate frequency receiver, relates to the field of electronic communication, and aims to solve the technical problems that the existing L band receiver cannot stably work in a high speed frequency hopping work mode, the bandwidth is low and the like. According to the broadband high speed frequency hopping intermediate frequency receiver provided by the utility model, the input end of an amplitude limiter (1) is connected with antenna signal input, and the output end is orderly connected in series with a low noise amplifier (2) and an one-out-three channel switch; a first frequency selecting filter (3), a second frequency selecting filter (4) and a third frequency selecting filter (5) are connected between the input end and the output end of the one-out-three channel switch; the output end of the one-out-three channel switch is orderly connected in series with a mixer (6), a first band-pass filter (8), a first intermediate frequency amplifier (9), a second band-pass filter (10), a second intermediate frequency amplifier (11) and a low-pass filter (12) and then outputs signals; and the output end of a local oscillation source (7) is connected with the mixer (6).
Description
Technical field
The utility model relates to electronic communication field, particularly a kind of broadband high-speed frequency hopping intermediate-frequency receiver.
Background technology
The L-band receiver has all adopted digitized processing at present; but all also there is a certain distance on high-speed frequency-hopping and broadband; usually can not adjust bandwidth as required; high speed that can not protection channel and follow-up real time signal processing, therefore usually can not be on the mode of operation of high-speed frequency-hopping steady operation.
Summary of the invention
The utility model be intended to solve existing L-band receiver can not be on the mode of operation of high-speed frequency-hopping the technical problems such as steady operation, bandwidth be lower, can realize stablize high-speed frequency-hopping to provide a kind of, bandwidth is the widest as 20M, little, the real-time broadband high-speed frequency hopping intermediate-frequency receiver of delaying time.
The purpose of this utility model is achieved through the following technical solutions.
broadband high-speed frequency hopping intermediate-frequency receiver of the present utility model, the input of amplitude limiter 1 connects the aerial signal input, its output is connected in series low noise amplifier 2 and one-out-three channel switch in turn, frequency-selecting filter 1, frequency-selecting filter 24 and frequency-selecting filter 35 are connected between three gating road switch input terminals and output, the output of three gating road switches is connected in series frequency mixer 6 in turn, band pass filter 1, intermediate frequency amplifier 1, band pass filter 2 10, the backward outer output signal of intermediate frequency amplifier 2 11 and low pass filter 12, the output of local vibration source 7 connects frequency mixer 6.
The beneficial effect of the utility model broadband high-speed frequency hopping intermediate-frequency receiver: the fast jumping mode of operation (despreading, demodulation) of any mode of bandwidth that can Shi Xian＜=20M, and also it is little to delay time, and real-time.
Description of drawings
Fig. 1 structure principle chart of the present utility model
The number in the figure explanation:
1 amplitude limiter, 2 low noise amplifiers, 3 frequency-selecting filters one, 4 frequency-selecting filters two, 5 frequency-selecting filters three, 6 frequency mixers, 7 local vibration sources, 8 band pass filters one, 9 intermediate frequency amplifiers one, 10 band pass filters two, 11 intermediate frequency amplifiers two, 12 low pass filters
Embodiment
The utility model detailed construction, application principle, effect and effect with reference to accompanying drawing 1, are explained by following execution mode.
consult shown in Figure 1, broadband high-speed frequency hopping intermediate-frequency receiver of the present utility model, the input of amplitude limiter 1 connects the aerial signal input, its output is connected in series low noise amplifier 2 and one-out-three channel switch in turn, frequency-selecting filter 1, frequency-selecting filter 24 and frequency-selecting filter 35 are connected between three gating road switch input terminals and output, the output of three gating road switches is connected in series frequency mixer 6 in turn, band pass filter 1, intermediate frequency amplifier 1, band pass filter 2 10, the backward outer output signal of intermediate frequency amplifier 2 11 and low pass filter 12, the output of local vibration source 7 connects frequency mixer 6.
Broadband high-speed frequency hopping intermediate-frequency receiver of the present utility model, signal process prime amplitude limit, low noise amplifier, frequency-selecting, mixing, intermediate frequency amplifies, and the Wideband Intermediate Frequency signal that carries out total digitalization after filtering is processed (FPGA carries out real-time signal to be processed).Passage is the passage of a high-speed response, follow-up digital processing can be adjusted bandwidth as required, and bandwidth is determined jointly by analog filter and digital filter, be mainly the signal handling capacity that Digital Signal Processing can be completed the 20M code check, the widest is 20MHz; Due to the high speed of passage and follow-up real time signal processing, the system that guaranteed can be operated on the mode of operation of high-speed frequency-hopping.
In addition, broadband high-speed frequency hopping intermediate-frequency receiver of the present utility model is significant in having the receiver of security requirements: due to the high-speed frequency-hopping characteristic, be not easy to be intercepted and captured; Simultaneously, bandwidth is also very wide, has intercepted and captured the data of also not analyzing wherein.
Therefore broadband high-speed frequency hopping intermediate-frequency receiver of the present utility model has many technological merits such as fast jumping mode of operation (despreading, demodulation), the time-delay of any mode of bandwidth that can Shi Xian＜=20M be little, real-time.
Claims (1)
1. broadband high-speed frequency hopping intermediate-frequency receiver, it is characterized in that: the input of amplitude limiter (1) connects the aerial signal input, its output is connected in series low noise amplifier (2) and one-out-three channel switch in turn, frequency-selecting filter one (3), frequency-selecting filter two (4) and frequency-selecting filter three (5) are connected between three gating road switch input terminals and output, the output of three gating road switches is connected in series frequency mixer (6) in turn, band pass filter one (8), intermediate frequency amplifier one (9), band pass filter two (10), intermediate frequency amplifier two (11) and the backward outer output signal of low pass filter (12), the output of local vibration source (7) connects frequency mixer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575059 CN202978928U (en) | 2012-11-05 | 2012-11-05 | Broadband high speed frequency hopping intermediate frequency receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575059 CN202978928U (en) | 2012-11-05 | 2012-11-05 | Broadband high speed frequency hopping intermediate frequency receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978928U true CN202978928U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220575059 Expired - Fee Related CN202978928U (en) | 2012-11-05 | 2012-11-05 | Broadband high speed frequency hopping intermediate frequency receiver |
Country Status (1)
| Country | Link |
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| CN (1) | CN202978928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030725A (en) * | 2019-12-11 | 2020-04-17 | 重庆会凌电子新技术有限公司 | Superheterodyne ultrashort wave transceiving channel system |
-
2012
- 2012-11-05 CN CN 201220575059 patent/CN202978928U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030725A (en) * | 2019-12-11 | 2020-04-17 | 重庆会凌电子新技术有限公司 | Superheterodyne ultrashort wave transceiving channel system |
| CN111030725B (en) * | 2019-12-11 | 2021-09-17 | 重庆会凌电子新技术有限公司 | Superheterodyne ultrashort wave transceiving channel system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20181105 |