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| Content Provider | IET Digital Library |
|---|---|
| Author | Cao, Wei Zhu, Jiahua Li, Xiaotian Hu, Weidong Lei, Jing |
| Abstract | In this study, the feasibility of multi-carrier modulation signals for passive radar is investigated. The illuminators of opportunity involve orthogonal frequency division multiplexing (OFDM) and filter-bank multi-carrier (FBMC). Average ambiguity functions (AAFs) of OFDM and FBMC are derived in the similar expressions, while the discrepancies differ at the prototype filters and symbol periods. Simulation results validate the derivation of AAF and demonstrate that (i) both OFDM and FBMC are nearly perfect illuminators of opportunity in passive coherent location systems owing to their thumbtack-shaped ambiguity function; (ii) the time delay resolutions of OFDM, CP–OFDM (cyclic prefix-OFDM) and FBMC are all extraordinary because of the broadband property, despite the existence of two sidelobes as a consequence of CP insertion for CP–OFDM; (iii) the Doppler shift resolution is affected by the CP length and prototype filter designs, thus FBMC's Doppler bandwidth is larger than OFDM and CP–OFDM's Doppler bandwidth, but FBMC guarantees no existence of sidelobes due to the use of specially designed prototype filter. Therefore, multi-carrier modulation signals are attractive new candidates for passive radar surveillance. |
| Starting Page | 1080 |
| Ending Page | 1087 |
| Page Count | 8 |
| ISSN | 17518784 |
| Volume Number | 10 |
| e-ISSN | 17518792 |
| Issue Number | Issue 6, Jul (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rsn/10/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2015.0414 |
| Journal | IET Radar, Sonar & Navigation |
| Publisher Date | 2016-07-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Average Ambiguity Function Channel Bank Filter CP Length CP-OFDM Doppler Bandwidth Cyclic Prefix-OFDM Doppler Shift Resolution FBMC Doppler Bandwidth Filter-bank Multicarrier Filtering Method in Signal Processing Modulation And Coding Method Multicarrier Modulation Signal OFDM Modulation Orthogonal Frequency Division Multiplexing System Passive Coherent Location System Passive Radar Passive Radar Surveillance Prototype Filter Designs Radar Equipment Search Radar System And Application Thumbtack-shaped Ambiguity Function Time Delay Resolution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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