JPS61127471U - - Google Patents
Info
- Publication number
- JPS61127471U JPS61127471U JP1170785U JP1170785U JPS61127471U JP S61127471 U JPS61127471 U JP S61127471U JP 1170785 U JP1170785 U JP 1170785U JP 1170785 U JP1170785 U JP 1170785U JP S61127471 U JPS61127471 U JP S61127471U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- fourier transform
- wave
- significant bit
- receives
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Radar Systems Or Details Thereof (AREA)
Description
第１図はこの考案の一実施例を示す図、第２図
は従来の高角度分解能レーダ装置を示す図、第３
図はアジマス方向の角度とドツプラ周波数の関係
を示す図、第４図はＤＩＦ（Ｄｅｃｉｍａｔｉｏ
ｎ ｉｎ Ｆｒｅｑｕｅ‐ｎｃｙ）によるＦＦＴ
結果の、ＦＦＴ係数と周波数の関係を示す図、第
５図は、第４図の結果をアンテナビームに合わせ
て並び換えた後のＦＦＴ係数と周波数の関係を示
す図である。
図において、１はアンテナ、２は送受信機、３
はフーリ変換装置、４はデータ並び換え装置、５
はアンテナビーム幅、６は画像、７は最終ステツ
プ最下位ビツト反転装置である。なお、各図中同
一符号は同一又は相当部分を示す。
Fig. 1 shows an embodiment of this invention, Fig. 2 shows a conventional high angular resolution radar device, and Fig. 3 shows a conventional high angular resolution radar device.
The figure shows the relationship between the angle in the azimuth direction and the Doppler frequency.
n in Freque-ncy)
FIG. 5 is a diagram showing the relationship between FFT coefficients and frequency as a result, after rearranging the results of FIG. 4 according to the antenna beam. In the figure, 1 is an antenna, 2 is a transceiver, and 3
is a Foury transform device, 4 is a data sorting device, 5
is the antenna beam width, 6 is the image, and 7 is the last step least significant bit inverter. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
以上の角度分解能を得るレーダ装置において、ア
ンテナと、前記アンテナに送信波を送り、前記ア
ンテナからの受信波を受信する送受信機と、この
送受信機からの受信波出力に対しフーリエ変換を
行い周波数分析を行うフーリエ変換装置と、前記
フーリエ変換装置を制御してフーリエ変換の最終
ステツプの最下位ビツトを反転させ、並び換えを
行う、最終ステツプ最下位ビツト反転装置とを備
えたことを特徴とするレーダ装置。 A radar device that obtains an angular resolution greater than the antenna beam width using the Topura frequency includes an antenna, a transceiver that sends a transmitted wave to the antenna and receives a received wave from the antenna, and a receiver that transmits a transmitted wave to the antenna and receives a received wave from the antenna. A Fourier transform device that performs Fourier transform on the wave output and performs frequency analysis; and a final step least significant bit inversion device that controls the Fourier transform device to invert and rearrange the least significant bit of the final step of the Fourier transform. A radar device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1170785U JPS61127471U (en) | 1985-01-30 | 1985-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1170785U JPS61127471U (en) | 1985-01-30 | 1985-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61127471U true JPS61127471U (en) | 1986-08-09 |
Family
ID=30494076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1170785U Pending JPS61127471U (en) | 1985-01-30 | 1985-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61127471U (en) |
-
1985
- 1985-01-30 JP JP1170785U patent/JPS61127471U/ja active Pending
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