| Title | Step Frequency Ground Penetrating Radar Characterization and Federal Evaluation Tests |
|---|---|
| Record ID | 65966 |
| Personal Name Creator |
Scott, Michael H.; Arnold, James A.; Gibson, David |
| Corporate Creator | Starodub, Inc. |
| Corporate Contributor |
United States. Department of Transportation. Research and Special Programs Administration; United States. Federal Highway Administration; United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center |
| Publisher | United States. Federal Highway Administration |
| Publication Date | 20101001 |
| Language | English |
| Abstract | A step frequency ground penetrating radar (SF GPR) system was characterized and evaluated to determine whether it can be operated safely in a proposed configuration that may include frequency notching in specific frequency bands. This emission testing was conducted with possible notching configurations turned on and then turned off to allow for both scenarios to be evaluated. Testing work focused on emissions characterization measurements suitable for computer analysis of potential interference with relevant systems. After initial testing was completed, needs for follow-up testing were defined. This follow-up testing was completed, and results are included in this report. Results from initial emissions testing showed that the SF GPR met National Telecommunications and Information Administration (NTIA) criteria for most frequencies, but some emissions frequencies still exceeded NTIA criteria. In addition, unintentional emissions below 140 MHz were observed to exceed intentional emission criteria at many frequencies. System adjustments were performed, and follow-up emissions testing was conducted using a final system configuration. The final system configuration met NTIA criteria for intentional emissions as described in the report. Unintentional emissions below 140 MHz were characterized to allow them to be evaluated as needed. |
| Public Note | Distribution number: HRDO-04/10-10(300)E |
| Rosap ID | dot:38847 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/38847 |
| TRT Terms | Ground penetrating radar; Measurement of electromagnetic phenomena |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1321097 |
| Contract Number | DTRT57-08-C-10032 |
| Report Number | FHWA-HRT-10-037 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/65000/65900/65966/FHWA-HRT-10-037.pdf |
| Alternative URL | https://www.fhwa.dot.gov/publications/research/operations/10037/index.cfm |
| Format | |
| Database | NTL Digital Repository |