CN206164513U - Broadcast communication transmitter - Google Patents
Broadcast communication transmitter Download PDFInfo
- Publication number
- CN206164513U CN206164513U CN201621281739.5U CN201621281739U CN206164513U CN 206164513 U CN206164513 U CN 206164513U CN 201621281739 U CN201621281739 U CN 201621281739U CN 206164513 U CN206164513 U CN 206164513U
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- digital signal
- signal processing
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Abstract
The utility model discloses a broadcast communication transmitter, stabilize amplification circuit unit, communication unit, power supply circuit unit including audio signal input unit, digital signal processing unit, digital frequency modulation modulation unit, power, audio signal input unit is connected with digital signal processing unit, and digital signal processing unit is connected with digital frequency modulation modulation unit, and digital frequency modulation modulation unit stabilizes amplification circuit unit through power and communication unit is connected, digital signal processing unit includes digital signal processor and connected filter circuit, stereophonic coder, digit add rehandle ware, pilot signal generator in advance respectively, digital frequency modulation modulation unit includes digital frequency synthesizer, band pass filter, and digital frequency synthesizer is connected with band pass filter through digital analog converter. The utility model discloses can effectively guarantee the transmission validity of broadcast singal, the long distance transmission of being convenient for has improved application range and application, the wide coverage greatly.
Description
Technical field
This utility model is related to a kind of communication transmitter, more particularly to a kind of broadcast communication transmitter.
Background technology
Broadcast develops into today as a kind of traditional mass information transmitting carrier, and its audience user is more and more, transmission
Quality also more and more higher, it has audient wide, the productive life, study the features such as ageing high, practical, to society
Education etc. plays huge impetus.Frequency modulation broadcasting carries out signal transmission using ultrashort wave band, can believe effective against interference
Number verity height.But the signal penetration power of frequency modulation broadcasting transmitting is poor, and very big by the limitation of topography and geomorphology, coverage is received
Limit.
Utility model content
Weak point in order to solve above-mentioned technical problem, this utility model provides a kind of broadcast communication transmitter.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of broadcast communication transmitter, bag
Include audio data input unit, digital signal processing unit, frequency-shift keying modulating unit, power stability amplifier circuit unit, logical
Letter unit, power circuit unit；Audio data input unit is connected with digital signal processing unit, digital signal processing unit
It is connected with frequency-shift keying modulating unit, frequency-shift keying modulating unit is by power stability amplifier circuit unit and communication unit phase
Connection；
Digital signal processing unit is included at digital signal processor, filter circuit, stereophonic encoder, digital preemphasis
Reason device, pilot signal generator；Filter circuit, stereophonic encoder, digital preemphasis processor, pilot signal generator difference
It is connected with digital signal processor；Frequency-shift keying modulating unit includes digital frequency synthesizer, band filter, numerical frequency
Synthesizer is connected by digital to analog converter with band filter.
Pilot signal generator is connected by activator with digital frequency synthesizer.
Power stability amplifier circuit unit includes Frequency Modulated radio power amplifier and low pass filter, and Frequency Modulated radio power is put
Big device is connected by low pass filter with communication unit.
Communication unit includes that GSM and GPRS receives sending module.
Power circuit unit respectively with audio data input unit, digital signal processing unit, frequency-shift keying modulating unit,
Power stability amplifier circuit unit, communication unit are connected.
This utility model signal is launched and receives convenient, can effectively ensure that the transmission availability of broadcast singal, is easy to length
Distance Transmission, substantially increases use range and application, wide coverage.
Description of the drawings
With reference to the accompanying drawings and detailed description the utility model is described in further detail.
Fig. 1 is structure connection block diagram of the present utility model.
Specific embodiment
As shown in figure 1, this utility model includes that audio data input unit, digital signal processing unit, frequency-shift keying are adjusted
Unit processed, power stability amplifier circuit unit, communication unit, power circuit unit；Audio data input unit and digital signal
Processing unit is connected, and digital signal processing unit is connected with frequency-shift keying modulating unit, and frequency-shift keying modulating unit passes through
Power stability amplifier circuit unit is connected with communication unit；Digital signal processing unit includes digital signal processor, filtering
Circuit, stereophonic encoder, digital preemphasis processor, pilot signal generator；Filter circuit, stereophonic encoder, numeral
Preemphasis processor, pilot signal generator are connected respectively with digital signal processor；Frequency-shift keying modulating unit includes number
Word frequency synthesizer, band filter, digital frequency synthesizer is connected by digital to analog converter with band filter.Pilot tone is believed
Number generator is connected by activator with digital frequency synthesizer.
The core of digital signal processing unit of the present utility model is a high performance digital signal processor, in the numeral
Digital audio and video signals under the control of signal processor to being input into pass through respectively Gain tuning, digital filtering, digital preemphasis, number
Stereo composite signal code stream is produced after the generation of word pilot tone, digital three-dimensional sound encoder, by computing by this code stream with mode of frequency regulation
Modulate on the fundamental frequency code stream of activator, so as to form frequency-shift keying signal bit stream, then directly pass through digital frequency synthesizer
Form Frequency Modulated radio signals.
Frequency-shift keying modulation receives frequency-shift keying signal bit stream by digital frequency synthesizer, then by internal direct frequency
Rate synthesizer forms frequency-shift keying radiofrequency signal, and Jing built-in digital to analog converter forms analog fm modulated wave signal, then Jing bands
Pure Frequency Modulated radio signals are obtained after bandpass filter.
Additionally, power stability amplifier circuit unit of the present utility model includes Frequency Modulated radio power amplifier and low-pass filtering
Device, it can be ensured that output runs steadily in the long term on the power of setting.Frequency Modulated radio power amplifier passes through low pass filter
It is connected with communication unit, communication unit includes that GSM and GPRS receives sending module.Power circuit unit is defeated with audio signal respectively
Enter unit, digital signal processing unit, frequency-shift keying modulating unit, power stability amplifier circuit unit, communication unit to be connected,
Directly provide stable power supply supply for each unit.
Above-mentioned embodiment is not that, to restriction of the present utility model, this utility model is also not limited to the example above,
Change, remodeling, addition or replacement that those skilled in the art are made in the range of the technical solution of the utility model,
Also protection domain of the present utility model is belonged to.
Claims (5)
1. a kind of broadcast communication transmitter, it is characterised in that：Including audio data input unit, digital signal processing unit, number
Word frequency modulation modulating unit, power stability amplifier circuit unit, communication unit, power circuit unit；The audio signal input is single
Unit is connected with digital signal processing unit, and the digital signal processing unit is connected with frequency-shift keying modulating unit, numeral
Frequency modulation modulating unit is connected by power stability amplifier circuit unit with communication unit；
The digital signal processing unit is included at digital signal processor, filter circuit, stereophonic encoder, digital preemphasis
Reason device, pilot signal generator；The filter circuit, stereophonic encoder, digital preemphasis processor, pilot signal generator
It is connected with digital signal processor respectively；The frequency-shift keying modulating unit includes digital frequency synthesizer, band filter,
Digital frequency synthesizer is connected by digital to analog converter with band filter.
2. broadcast communication transmitter according to claim 1, it is characterised in that：The pilot signal generator is by excitation
Device is connected with digital frequency synthesizer.
3. broadcast communication transmitter according to claim 1, it is characterised in that：The power stability amplifier circuit unit bag
Frequency Modulated radio power amplifier and low pass filter are included, Frequency Modulated radio power amplifier is by low pass filter and communication unit Rhizoma Coptidis
Connect.
4. broadcast communication transmitter according to claim 1, it is characterised in that：The communication unit includes GSM and GPRS
Receive sending module.
5. broadcast communication transmitter according to claim 1, it is characterised in that：The power circuit unit respectively with audio frequency
Signal input unit, digital signal processing unit, frequency-shift keying modulating unit, power stability amplifier circuit unit, communication unit
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621281739.5U CN206164513U (en) | 2016-11-28 | 2016-11-28 | Broadcast communication transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621281739.5U CN206164513U (en) | 2016-11-28 | 2016-11-28 | Broadcast communication transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164513U true CN206164513U (en) | 2017-05-10 |
Family
ID=58661263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621281739.5U Active CN206164513U (en) | 2016-11-28 | 2016-11-28 | Broadcast communication transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206164513U (en) |
-
2016
- 2016-11-28 CN CN201621281739.5U patent/CN206164513U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |