銆婇浕瀛愭妧琛撴噳鐢ㄣ
鎮ㄦ墍鍦ㄧ殑浣嶇疆锛棣栭爜 > 閫氫俊鑸囩恫绲 > 瑷▓鎳夌敤 > 涓夎矾甯堕氭贩鐤婁俊鍙锋暩瀛楁帴鏀舵瑷▓
涓夎矾甯堕氭贩鐤婁俊鍙锋暩瀛楁帴鏀舵瑷▓
2019骞撮浕瀛愭妧琛撴噳鐢ㄧ8鏈
鐜嬫椽姊咃紝濮 娌栵紝鐜嬫硶寤o紝鏉庝笘閵锛屽畫閲戠幉
涓湅绀︽キ澶у 淇℃伅鑸囨帶鍒跺闄紝姹熻槆 寰愬窞221200
鎽樿锛 鐐鸿В姹轰笁璺付閫氫俊鍙锋贩鐤婂晱椤岋紝鎻愬嚭浜嗕竴绋欢鏅傚彲瑾跨殑涓夐殠甯堕氶噰妯g祼妲嬶紝閫氶亷瑷▓鏁稿瓧鎶楁贩鐤婃烤娉㈠櫒锛屽彲瀵︾従灏嶄笁璺付閫氫俊鍙风殑鐒℃贩鐤婃帴鏀躲傜郸鍑轰簡浠跨湡瀵︾従绲愭灉锛屽苟灏嶄俊鍙烽茶閲嶆锛屽垎鏋愪簡鎶楁贩鐤婃ц兘锛屼笁璺付閫氫俊鍙风稉閬庢姉娣风枈婵炬尝鍣ㄥ緦锛屼俊鍙疯几鍑轰俊鍣瘮鍙湪28 dB浠ヤ笂銆傝┎鏂规硶瑙f焙浜嗗付閫氶噰妯d腑澶氫俊鍙锋贩鐤婂晱椤岋紝澧炲姞浜嗛噰妯i牷鐜囬伕鎿囩瘎鍦嶏紝鍙互娓涘皯纭欢璨犳摂锛屾彁楂樹簡杌熶欢鐒$窔闆荤殑闈堟椿鎬с
涓湒鍒嗛鍙凤細 TN911.72
鏂囩嵒鏍囪瓨纰硷細 A
DOI锛10.16157/j.issn.0258-7998.190467
涓枃寮曠敤鏍煎紡锛 鐜嬫椽姊咃紝濮氭矕锛岀帇娉曞唬锛岀瓑. 涓夎矾甯堕氭贩鐤婁俊鍙锋暩瀛楁帴鏀舵瑷▓[J].闆诲瓙鎶琛撴噳鐢紝2019锛45(8)锛95-98锛103.
鑻辨枃寮曠敤鏍煎紡锛 Wang Hongmei锛孻ao Chong锛學ang Faguang锛宔t al. Digital frontend design for three-bands aliasing RF signals[J]. Application of Electronic Technique锛2019锛45(8)锛95-98锛103.
Digital frontend design for three-bands aliasing RF signals
Wang Hongmei锛孻ao Chong锛學ang Faguang锛孡i Shiyin锛孲ong Jinling
School of Information and Control Engineering锛孋hina University of Mining and Technology锛孹uzhou 221200锛孋hina
Abstract锛 In order to solve the problem of three-band bandpass signal aliasing, a delay-adjustable third-order bandpass sampling structure is proposed. By designing a digital anti-aliasing filter, the alias-free reception of three-band bandpass signals can be realized. The simulation results are given, the signal is reconstructed and the anti-aliasing performance is analyzed. After the three-passband signal passes through the anti-aliasing filter, the signal output signal-to-noise ratio can be above 28 dB. This method solves the bandpass. The multi-signal aliasing problem in sampling increases the sampling frequency selection range, which reduces the hardware burden and improves the flexibility of the software radio.
Key words : bandpass sampling锛沵ulti-bandpass signal锛沝igital receiver锛沘nti-aliasing

0 寮曡█

    濡備綍灏嶅皠闋(RF)淇″彿閫茶鏁稿瓧鍖栨槸杌熶欢鐒$窔闆(SDR)闈㈣嚚鐨勯瑕佸晱椤岋紝鍗冲浣曞皪鎰熻垐瓒g殑淇″彿閫茶閲囨ǎ[1]甯堕氶噰妯鍙互浣跨敤姣擱F淇″彿鏈楂橀牷鐜囦綆寰楀鐨勯噰妯g巼锛屽洜姝よ寤f硾鐢ㄤ簬SDR鎺ユ敹姗熶腑銆傞殢鐫鐒$窔閫氫俊鐨勭櫦灞曪紝澶氶牷娈垫帴鏀舵[2-4]鎳夌敤鏇村姞寤f硾銆備絾鏄暥鎺ユ敹鍒板闋讳俊鍙锋檪锛屽闋讳俊鍙蜂箣闁撳鏄撶櫦鐢熸贩鐤娿傚ぇ澶氭暩鐮旂┒浜哄摗閫氶亷閬告搰閲囨ǎ闋荤巼渚嗛伩鍏嶆贩鐤婂晱椤岋紝閫欓檺鍒朵簡閲囨ǎ闋荤巼鐨勯伕鎿[5-7]銆備簩闅庡付閫氶噰妯(BPS)鍙互鐢ㄤ締闄嶄綆閲囨ǎ鐜囧拰铏曠悊娣风枈銆傚皪浜庝簩闅嶣PS绯荤当锛屽ぇ閮ㄥ垎鐮旂┒閮藉熀浜庢浜や俊鍙疯檿鐞嗕締閫茶鎶楁贩鐤銆備緥濡傛枃鐛籟8]閲囨ǎ寰岄噰鐢ㄥ笇鐖句集鐗硅畩鎻涳紝鑰屾枃鐛籟9]閲囩敤90掳娣峰悎浜ゅ弶淇″彿閫茶閲囨ǎ銆傚湪鏂囩嵒[10]涓紝鍏╁嬮噰妯h缃敚鐢90掳鐨勭浉浣嶅樊銆傞欎簺鐮旂┒鍏佽ū閲囨ǎ绯荤当浣跨敤杓冨皬鐨勯噰妯i牷鐜囷紝浣嗛毣鑳芥秷闄や俊鍙疯嚜韬湒鍍忕殑娣风枈锛屽苟涓嶈兘铏曠悊鍏╁嬩俊鍙蜂箣闁撶殑娣风枈銆傛敼閫茬殑甯堕氶噰妯f柟娉曚篃鍙互瀵︾従灏嶆贩鐤婁俊鍙风殑铏曠悊锛屼絾鐩告噳鐨勯噸妲嬬畻娉曡純鐐鸿闆[11-13]銆 

    鍦ㄤ互鍓嶇殑宸ヤ綔涓紝浜岄殠BPS鍙鐢ㄥ欢鏅備締瀵︾従鍏╁嬮噸鐤婁俊鍙风殑鎺ユ敹[14]銆傛湰鏂囨彁鍑哄欢鏅傚彲瑾跨殑涓夐殠甯堕氶噰妯g祼妲嬬敤浜庤檿鐞3璺付閫氫俊鍙锋贩鐤婂晱椤屻傞氶亷灏嶄笁闅庡付閫氶噰妯d俊鍙烽牷璀滅殑鍒嗘瀽锛屾牴鎿3璺噰妯d俊鍙烽枔鐩镐綅宸ō瑷堟姉娣风枈婵炬尝鍣紝娑堥櫎娣风枈淇″彿锛屽苟閫氶亷浠跨湡椹楄瓑绯荤当鎬ц兘銆

1 涓夐殠BPS鐨勭祼妲

    鍋囪ō甯堕氫俊鍙稲(f)鐨勫付瀵檺鍒剁偤B锛岄噰妯g巼鐐篺s=2B銆傚畾缇╀俊鍙蜂綅缃储寮昻鐢卞紡(1)琛ㄧず锛屽湪绱㈠紩浣嶇疆n铏曠殑浠绘剰淇″彿缍撳付閫氶噰妯e緦閮藉彲浠ユ仮瑜囧埌绗竴濂堝鏂壒鍗涓紝鍏朵腑绗竴濂堝鏂崁鍩焲f|<B鏄储寮曠偤闆剁殑闋荤巼鍗銆傚付瀵珺鎰忓懗鐫铏曠悊甯跺锛屽嵆鍦ㄨ┎闋诲付涓彲浠ュ瓨鍦ㄥ鍊嬬殑淇″彿銆

    tx1-gs1.gif

    灏嶄簬灏勯牷淇″彿缍撳付閫氶噰妯e緦鍦ㄥ悓涓闋诲煙鍐呮渻寮曡捣涓変俊鍙风殑娣风枈鐝捐薄锛岃ō缃笁闅庢姉娣风枈婵炬尝鍣ㄤ締铏曠悊銆

    涓夐殠BPS閲囨ǎ绯荤当鐨勭祼妲嬪鍦1鎵绀恒

tx1-t1.gif

    濡傚湒2鎵绀猴紝鍏锋湁闋昏瓬R1(f)銆丷2(f)鍜孯3(f)鐨3鍊婻F淇″彿S1銆丼2鍜孲3锛屼娇鐢ㄥ湒1鐨勭祼妲嬮茶涓夐殠BPS閲囨ǎ銆3鍊嬮噰妯i氶亾鍒嗗埆琛ㄧず鐐洪氶亾A銆侀氶亾B鍜岄氶亾C锛屽皢閫氶亾A涓殑闋昏瓬瀹氱京鐐猴細

tx1-gs2.gif

tx1-t2.gif

tx1-t3.gif

    鍦ㄩ噰妯i氶亾B涓紝闋昏瓬鐐猴細

tx1-gs3.gif

tx1-t4.gif

    鍦ㄩ噰妯i氶亾C涓紝闋昏瓬鐐猴細

     tx1-gs4.gif

鍏朵腑锛tx1-gs4-x1.gif闋昏瓬濡傚湒5鎵绀恒

tx1-t5.gif

2 鎶楁贩鐤婃烤娉㈠櫒瑷▓

    鍦3鍊嬮氶亾涓垎鍒畾缇╂姉娣风枈婵炬尝鍣⊿A(f)銆丼B(f)鍜孲C(f)锛屾仮瑜囦俊鍙风殑闋昏瓬鐐猴細

     tx1-gs5-7.gif

    璨犻牷璀滃拰姝i牷璀滄槸灏嶇ū鐨勶紝閫欒!闅昏璜栨闋昏瓬銆備娇鐢ㄥ紡(3)鍜屽紡(4)锛屽紡(6)鍜屽紡(7)鍙互绨″寲鐐猴細

     tx1-gs8.gif

    灏嗗紡(8)鏇存敼鐐虹煩闄e舰寮忥細

tx1-gs9-13.gif

    鍩轰簬寮(10)锝炲紡(12)锛屽彲浠ラ氶亷灏嶅叾鏅傚煙鏁告摎閫茶閲囨ǎ浣滅偤FIR婵炬尝鍣ㄧ殑绯绘暩渚嗚ō瑷堟姉娣风枈婵炬尝鍣ㄣ

    鐢卞紡(10)锝炲紡(12)鍙互鐪嬪嚭锛屽鏋滃浐瀹氶噰妯i牷鐜囧拰涓夐殠甯堕氶噰妯i枔閲囨ǎ寤舵檪锛屾姉娣风枈婵炬尝鍣ㄩ毣鑸囦俊鍙蜂綅缃储寮昻鏈夐棞锛屽洜姝ゅ皪浜庝笉鍚屼綅缃殑灏勯牷淇″彿锛岄毣闇瑕佽鏁存烤娉㈠櫒涓郴鏁稿氨鍙互瀵︾従鎶楁贩鐤婃晥鏋溿

3 浠跨湡绲愭灉

    鍩轰簬鎶楁贩鐤婄畻娉曠殑鍒嗘瀽锛屽湪MATLAB涓娇鐢‵DA宸ュ叿瑷▓浜嗘姉娣风枈婵炬尝鍣ㄣ傛脯瑭﹁几鍏3鍊嬩俊鍙稴1銆丼2鍜孲3锛屼腑蹇冮牷鐜囧垎鍒偤fc1=1.320 GHz銆乫c2=2.025 GHz鍜宖c3=1.630 GHz銆傞噰妯i牷鐜囬伕鍙杅s=100 MHz銆傞氶亷淇″彿浣嶇疆绱㈠紩鐨勫畾缇╁彲浠ュ緱鍒皀1=13锛宯2=20锛宯3=16銆3鍊嬩俊鍙风殑甯跺閮界偤10 MHz銆

    鍦ㄤ笁闅嶣PS涔嬪緦锛3鍊嬩俊鍙峰悓鏅傝鎺ユ敹锛岄牷璀滃鍦6鎵绀恒傚湪BPS涔嬪緦锛3鍊嬩俊鍙风殑涓績闋荤巼鍒嗗埆鐐20 MHz銆25 MHz鍜30 MHz銆傚緸鍦6鍙互鐪嬪嚭锛岄3鍊嬪付閫氫俊鍙峰湪閲囨ǎ寰岀浉浜掗噸鐤娿

tx1-t6.gif

    鏍规摎寮(10)锝炲紡(12)锛屾噳鐢ㄤ笁闅嶣PS鍦ㄩ噰妯i氶亾B鍜岄噰妯i氶亾C涓坊鍔犳檪闁撳欢閬睺螖1=0.4脳10-9 s銆乀螖2=1.2脳10-9 s渚嗚ō瑷堟姉娣风枈婵炬尝鍣紝淇″彿S1鐨勯牷璀滄仮瑜囧鍦7鎵绀恒傚嵆鐢变俊鍙稴2鍜屼俊鍙稴3寮曡捣鐨勬贩鐤婅鎶戝埗銆

tx1-t7.gif

    浣跨敤鐩稿悓鐨勬柟娉曡ō瑷堟姉娣风枈婵炬尝鍣ㄤ締鎭㈣S2鍜孲3锛岀祼鏋滃鍦8鍜屽湒9鎵绀恒傚緸鍦7锝炲湒9鍙互鐪嬪嚭锛屾贩鐤婂潎琚姂鍒惰秴閬40 dBW銆

tx1-t8.gif

tx1-t9.gif

4 閲嶆鎬ц兘

    灏嶆姉娣风枈铏曠悊寰岀殑淇″彿閫茶涓嬭畩闋诲強瑙h锛屽湒10鐐轰腑蹇冮牷鐜囩偤1.32 GHz 鏅傞噸妲嬩俊鍙风殑鏄熷骇鍦栵紝鍙畻鍑轰俊鍣瘮鐐34.399 dB銆

tx1-t10.gif

    鐐轰簡閫蹭竴姝ラ璀夊叾浠栭牷鐜囩瘎鍦嶅唴鐨勯噸妲嬫ц兘锛屽皪闋荤巼鍋忕疆浣嶄簬0锝50 MHz锛0锝瀎s/2锛夌瘎鍦嶅唴鐨勪俊鍙烽茶娓│锛屼互n=20鐐轰緥锛屾牴鎿氫竴绯诲垪瀵﹂浠跨湡绲愭灉寰楀埌鐩告噳鐨勬姉娣风枈鎬ц兘鍒嗘瀽濡傚湒11鎵绀恒傜祼鏋滆〃鏄庢帴鏀朵俊鍙蜂俊鍣瘮鍦28 dB浠ヤ笂銆

tx1-t11.gif

5 绲愯珫

    鏈枃鍩轰簬BPS锛岀郸鍑轰簡涓夐殠BPS鐨勭祼妲嬨傞氶亷瑷▓鎶楁贩鐤婃烤娉㈠櫒锛屽彲浠ュ垎闆㈠嚭3鍊嬮噸鐤婄殑淇″彿銆備豢鐪熺祼鏋滆〃鏄庯紝瑷▓鐨勬姉娣风枈婵炬尝鍣ㄥ彲浠ユ湁鏁堟秷闄ゅ叾浠栧叐绋俊鍙峰紩璧风殑娣风枈鐝捐薄銆傚緸淇″彿閲嶅缓鍒嗘瀽鍑哄叾鎶楁贩鐤婃ц兘寰堝ソ銆

鍙冭冩枃鐛

[1] MACHADO R G锛學YGLINSKI A M.Software-defined radio锛歜ridging the analog-digital divide[J].Proceedings of the IEEE锛2015锛103(3)锛409-423.

[2] 鏉庤睌闇.灏勯牷鐩存帴鏁稿瓧鍖栨帴鏀舵[J].闆诲瓙鎶琛撹垏杌熶欢宸ョ▼锛2017(16)锛92-92.

[3] 娈锋锛屾潕鐜夊嘲锛岄Ξ鎲插懆.DME鎳夌瓟鎺ユ敹姗熸妧琛撶爺绌禰J].闆诲瓙鎶琛撴噳鐢紝2018锛44(5)锛27-30.

[4] 鍞愮劧锛屽惓铏癸紝绋嬫ü杌嶏紝绛.甯堕氶噰妯f槦杓堿IS闈炵浉骞规帴鏀舵鐨凢PGA瀵︾従[J].闆诲瓙鎶琛撴噳鐢紝2018锛44(1)锛33-36.

[5] MESSAOUD M A锛孏HANNOUCHI F M锛孊ARRAK R锛宔t al.SDR based multi-band subsampling receivers for GNSS applications[C].1st International Conference on Advanced Technologies for Signal and Image Processing锛孲ousse锛孴UNISIA锛2014.

[6] THABET J锛孊ARRAK R锛孏HAZEL A.A new reconfigurable architecture for Multistandard GNSS subsampling receiver[C].4th International Conference on Communications and Networking锛孒ammamet锛孴UNISIA锛2014.

[7] THABET J锛孊ARRAK R锛孏HAZEL A.Enhancement of bandpass sampling efficiency in direct RF subsampling receivers锛歛pplication to multiband GPS subsampling receiver[C].International Conference on Multimedia Computing and Systems锛孧arrakech锛孧OROCCO锛2014.

[8] AL-ABOODI M锛孡AMI I A.OCBPSR锛歰rthogonal complex bandpass sampling receiver[C].World Congress on Computer Applications and Information Systems锛孒ammamet锛孴UNISIA锛2014.

[9] Cao Minghua锛孡i Jianqiang锛孌ai Yitang锛宔t al.Multiband phase-modulated RoF link with coherent detection and bandpass sampling[J].IEEE Photonics Technology Letters锛2015锛27(21)锛2308-2311.

[10] JE-IN B.Design of second-order BPS systems for the cancellation of multiple aliasing[J].Journal of the Institute of Electronics and Information Engineers锛2015锛52(3)锛162-170.

[11] 寮电澘锛屾潕缍嫳锛屾潕寤烘澅.甯堕氶噰妯f妧琛撳湪杌熶欢鎺ユ敹姗熶腑鐨勬噳鐢╗J].瑗垮畨闆诲瓙绉戞妧澶у瀛稿牨锛2000(3):326-329锛367.

[12] 椤у槈杓濓紝鍔夋磱锛屾潕鎸彲.楂橀熼噰妯d俊鍙峰苟琛屾暩瀛椾笅璁婇牷鍙奆IR婵炬尝鏂规硶[J].绌洪枔闆诲瓙鎶琛擄紝2017锛14(4)锛22-27锛38.

[13] Liu Gaohui锛孏aoYong锛孻u Ningmei.Research on non uniform bandpass sampling[J].Journal of Beijing University of Posts And Telecom锛2005锛28(4)锛66-68.

[14] Wang Hongmei锛孻ao Chong锛學ang Faguang锛宔t al.Multistandard receiver design for telemedicine monitoring system[J].Journal of Sensors锛2018(4)锛1-8.



浣滆呬俊鎭:

鐜嬫椽姊咃紝濮  娌栵紝鐜嬫硶寤o紝鏉庝笘閵锛屽畫閲戠幉

(涓湅绀︽キ澶у 淇℃伅鑸囨帶鍒跺闄紝姹熻槆 寰愬窞221200)