KR970000659B1 - Satellite communication central base site - Google Patents
Satellite communication central base siteInfo
- Publication number
- KR970000659B1 KR970000659B1 KR94025844A KR19940025844A KR970000659B1 KR 970000659 B1 KR970000659 B1 KR 970000659B1 KR 94025844 A KR94025844 A KR 94025844A KR 19940025844 A KR19940025844 A KR 19940025844A KR 970000659 B1 KR970000659 B1 KR 970000659B1
- Authority
- KR
- South Korea
- Prior art keywords
- signals
- frequency
- signal
- waveform
- transmitting
- Prior art date
Links
Abstract
The central terminal modulating apparatus is comprised of a waveform shaping filters(100,200) waveform-shaping same signals(I,Q signals) separated in a transmitting signal processor(22) to limit an usage band, then transmitting to a frequency mixers(23,24); the I and Q signals of velocity of fb transmitted from the transmitting signal processor(22) passing through the waveform filters(100,200) to be mixed respectively with signals of a same phase and of a 90-degree phase difference(25) from a modulation frequency signal generator(26) of frequency fc at the frequency mixers(23,24); in this case(a') the spectrum(29) of the output signal having its form in which a central frequency is fc, and which form is fc+/-fd band limited; this signal being converted and amplified into a transmission RF signal in a RF equipment(27) and being transmitted to a satellite through an antenna(28).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR94025844A KR970000659B1 (en) | 1994-10-10 | 1994-10-10 | Satellite communication central base site |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR94025844A KR970000659B1 (en) | 1994-10-10 | 1994-10-10 | Satellite communication central base site |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970000659B1 true KR970000659B1 (en) | 1997-01-16 |
Family
ID=19394749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR94025844A KR970000659B1 (en) | 1994-10-10 | 1994-10-10 | Satellite communication central base site |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970000659B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112865886A (en) * | 2020-12-30 | 2021-05-28 | 洛阳伟信电子科技有限公司 | Method for realizing FC communication rate detection based on FPGA |
-
1994
- 1994-10-10 KR KR94025844A patent/KR970000659B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112865886A (en) * | 2020-12-30 | 2021-05-28 | 洛阳伟信电子科技有限公司 | Method for realizing FC communication rate detection based on FPGA |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20091231 Year of fee payment: 14 |
|
LAPS | Lapse due to unpaid annual fee |