JPH0323369U - - Google Patents
Info
- Publication number
- JPH0323369U JPH0323369U JP8440889U JP8440889U JPH0323369U JP H0323369 U JPH0323369 U JP H0323369U JP 8440889 U JP8440889 U JP 8440889U JP 8440889 U JP8440889 U JP 8440889U JP H0323369 U JPH0323369 U JP H0323369U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- antenna
- amplifier
- demodulator
- band filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
- Circuits Of Receivers In General (AREA)
Description
第１図は本考案の実施例に係る雷検知器を示す
ブロツク図、第２図は第１図に示す雑音判定回路
のフローチヤート図である。
１……空中線、２……帯域フイルタ、３……増
幅器、４……復調回路、５……雑音判定回路、６
……アラーム発生器、７……スピーカ。
FIG. 1 is a block diagram showing a lightning detector according to an embodiment of the present invention, and FIG. 2 is a flowchart of the noise determination circuit shown in FIG. DESCRIPTION OF SYMBOLS 1...Antenna, 2...Band filter, 3...Amplifier, 4...Demodulation circuit, 5...Noise determination circuit, 6
...Alarm generator, 7...Speaker.
Claims (1)
定の周波数範囲の成分を抽出する帯域フイルタと
、この帯域フアルタを通過した成分の信号を増幅
する増幅器と、この増幅器の出力信号を復調する
復調器と、この復調器の出力信号から入力信号が
雑音であるか又は通信波であるかを判定する雑音
判定回路と、を有することを特徴とする雷検知器
。 an antenna, a band filter that extracts components in a predetermined frequency range from a signal received from the antenna, an amplifier that amplifies the signal of the component that has passed through the band filter, and a demodulator that demodulates the output signal of the amplifier; A lightning detector comprising a noise determination circuit that determines whether an input signal is noise or a communication wave from the output signal of the demodulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8440889U JPH0323369U (en) | 1989-07-18 | 1989-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8440889U JPH0323369U (en) | 1989-07-18 | 1989-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0323369U true JPH0323369U (en) | 1991-03-11 |
Family
ID=31632872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8440889U Pending JPH0323369U (en) | 1989-07-18 | 1989-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0323369U (en) |
-
1989
- 1989-07-18 JP JP8440889U patent/JPH0323369U/ja active Pending