JP2007525853A - 広帯域ダイレクト・ディジタル・シンセサイザ - Google Patents
広帯域ダイレクト・ディジタル・シンセサイザ Download PDFInfo
- Publication number
- JP2007525853A JP2007525853A JP2005512861A JP2005512861A JP2007525853A JP 2007525853 A JP2007525853 A JP 2007525853A JP 2005512861 A JP2005512861 A JP 2005512861A JP 2005512861 A JP2005512861 A JP 2005512861A JP 2007525853 A JP2007525853 A JP 2007525853A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- dds
- clock
- frequency
- generator
- 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
- 238000000034 method Methods 0.000 claims abstract description 42
- 230000004044 response Effects 0.000 claims abstract description 30
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 33
- 238000006243 chemical reaction Methods 0.000 description 15
- 238000009826 distribution Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 11
- 238000013461 design Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 230000003595 spectral effect Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000013507 mapping Methods 0.000 description 5
- 238000013139 quantization Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 101100339482 Colletotrichum orbiculare (strain 104-T / ATCC 96160 / CBS 514.97 / LARS 414 / MAFF 240422) HOG1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000729 poly(L-lysine) polymer Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/02—Digital function generators
- G06F1/022—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2003/039231 WO2005062736A2 (fr) | 2003-12-11 | 2003-12-11 | Synthetiseur dds large bande |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2007525853A true JP2007525853A (ja) | 2007-09-06 |
Family
ID=34738258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005512861A Pending JP2007525853A (ja) | 2003-12-11 | 2003-12-11 | 広帯域ダイレクト・ディジタル・シンセサイザ |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1700409A2 (fr) |
JP (1) | JP2007525853A (fr) |
AU (1) | AU2003296435A1 (fr) |
CA (1) | CA2547688A1 (fr) |
WO (1) | WO2005062736A2 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7834713B2 (en) | 2008-02-29 | 2010-11-16 | Itt Manufacturing Enterprises, Inc. | Synthesized local oscillator and method of operation thereof |
CN102571086B (zh) * | 2011-11-25 | 2015-02-11 | 中国船舶重工集团公司第七二四研究所 | 细步进超宽带捷变频低杂散低相噪频率合成器 |
CN105572641B (zh) * | 2015-12-10 | 2018-06-26 | 武汉滨湖电子有限责任公司 | 一种在线重构式宽/窄带通用雷达源及其产生方法 |
CN107659310B (zh) * | 2017-11-07 | 2024-02-06 | 云南昆船智能装备有限公司 | 一种可实现agv导引与通信的频率发生器 |
CN110208747A (zh) * | 2019-06-11 | 2019-09-06 | 上海航天电子通讯设备研究所 | 一种X-Ku波段雷达捷变频率源装置 |
CN110995251B (zh) * | 2019-12-04 | 2023-12-08 | 山东浪潮科学研究院有限公司 | 一种减少换频时间的跳频源及其使用方法 |
CN111106830B (zh) * | 2019-12-31 | 2022-12-23 | 陕西烽火电子股份有限公司 | 一种快速捷变的宽带频率合成器 |
GB2598080A (en) * | 2020-06-30 | 2022-02-23 | Entpr Control Systems Ltd | Signal up-conversion system and method |
CN113364493B (zh) * | 2021-05-20 | 2022-04-29 | 中石化江钻石油机械有限公司 | 一种井下无线发射自适应选频方法及系统 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0897744A (ja) * | 1994-09-29 | 1996-04-12 | Mitsubishi Electric Corp | 通信装置、周波数シンセサイザ、通信方法及びシンセサイズ方法 |
JPH0923158A (ja) * | 1995-07-07 | 1997-01-21 | Mitsubishi Electric Corp | 周波数シンセサイザ |
JPH09219669A (ja) * | 1996-02-09 | 1997-08-19 | Sanyo Electric Co Ltd | ダイレクト・ディジタル・シンセサイザ |
JP2003264431A (ja) * | 2002-03-08 | 2003-09-19 | Hioki Ee Corp | 信号発生装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4951237A (en) * | 1988-04-22 | 1990-08-21 | Hughes Aircraft Company | Direct digital synthesizer with selectably randomized accumulator |
US5073869A (en) * | 1989-08-25 | 1991-12-17 | Titan Linkabit Corporation | Suppression of spurious frequency components in direct digital frequency synthesizer |
US4965531A (en) * | 1989-11-22 | 1990-10-23 | Carleton University | Frequency synthesizers having dividing ratio controlled by sigma-delta modulator |
-
2003
- 2003-12-11 WO PCT/US2003/039231 patent/WO2005062736A2/fr not_active Application Discontinuation
- 2003-12-11 CA CA002547688A patent/CA2547688A1/fr not_active Abandoned
- 2003-12-11 JP JP2005512861A patent/JP2007525853A/ja active Pending
- 2003-12-11 EP EP03819252A patent/EP1700409A2/fr not_active Withdrawn
- 2003-12-11 AU AU2003296435A patent/AU2003296435A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0897744A (ja) * | 1994-09-29 | 1996-04-12 | Mitsubishi Electric Corp | 通信装置、周波数シンセサイザ、通信方法及びシンセサイズ方法 |
JPH0923158A (ja) * | 1995-07-07 | 1997-01-21 | Mitsubishi Electric Corp | 周波数シンセサイザ |
JPH09219669A (ja) * | 1996-02-09 | 1997-08-19 | Sanyo Electric Co Ltd | ダイレクト・ディジタル・シンセサイザ |
JP2003264431A (ja) * | 2002-03-08 | 2003-09-19 | Hioki Ee Corp | 信号発生装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2005062736A3 (fr) | 2006-09-14 |
CA2547688A1 (fr) | 2005-07-14 |
EP1700409A2 (fr) | 2006-09-13 |
AU2003296435A2 (en) | 2005-07-21 |
AU2003296435A1 (en) | 2005-07-21 |
WO2005062736A2 (fr) | 2005-07-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7302237B2 (en) | Wideband signal generators, measurement devices, methods of signal generation, and methods of signal analysis | |
KR101045110B1 (ko) | 고속 주파수 호핑 확산 스펙트럼 기술에 기초한 셀룰러무선 통신 시스템용 직접 디지털 주파수 합성기 | |
CA2158667C (fr) | Methode et appareil de communication et de synthese de signaux | |
US4926130A (en) | Synchronous up-conversion direct digital synthesizer | |
US7599977B2 (en) | Direct digital synthesizer system and related methods | |
US5898325A (en) | Dual tunable direct digital synthesizer with a frequency programmable clock and method of tuning | |
US20090086844A1 (en) | Method And System For A Programmable Local Oscillator Generator Utilizing A DDFS For Extremely High Frequencies | |
KR20030043959A (ko) | 광대역 고속 호핑 수신기용 프론트 엔드 및 믹싱 방법 | |
JP2007525853A (ja) | 広帯域ダイレクト・ディジタル・シンセサイザ | |
JP2003534700A (ja) | 回転周波数合成器 | |
KR100973725B1 (ko) | Dds를 이용한 클럭 발생 장치 | |
US8014486B2 (en) | Generating a frequency switching local oscillator signal | |
US5892692A (en) | Method for generating a lookup table for a digital oscillator | |
US20050102337A1 (en) | Frequency locked digitally tuned oscillator synthesizer | |
KR0149126B1 (ko) | 혼합형 주파수 합성기 | |
US5936438A (en) | Digital oscillator using lookup table with multiple cycles | |
US8014422B2 (en) | Method and system for utilizing a single PLL to clock an array of DDFS for multi-protocol applications | |
JP2007215039A (ja) | 周波数シンセサイザ、通信機、及び周波数シンセサイズ方法 | |
JPS6387808A (ja) | チヤ−プ信号発生回路 | |
CN115427911A (zh) | 在频率合成中使用稳定的可调谐有源反馈模拟滤波器 | |
JPH08223035A (ja) | Pll周波数シンセサイザ | |
Parsons | Frequency synthesizer fundamentals with emphasis on direct digital synthesizers | |
Indhumathi et al. | Periodic Wave Generation for Direct Digital Synthesization. | |
JPH11177343A (ja) | 複数サイクルのルックアップ・テーブルを用いるディジタル発振器 | |
JPH09116577A (ja) | 高周波帯域信号生成装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20091029 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091104 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20100406 |