N7607B Signal Studio for DFS Radar Profiles

Simplify Dynamic Frequency Selection (DFS) Radar Profile Creation 

Keysight Technologies, Inc. Signal Studio software is a flexible suite of signal-creation tools that will reduce the time you spend on signal simulation. For DFS radar profiles, Signal Studio’s performance-optimized reference signals—validated by Keysight—enhance the characterization and verification of your devices. Through its applicationspecific user-interface you’ll create standards-based and custom radar signals for DFS tests. 

Dynamic frequency selection (DFS) test

• Signal Studio’s capabilities use waveform playback mode to create and customize the waveform files needed to test DFS. Its user-friendly interface lets you configure signal parameters, calculate the resulting waveforms, and download files for playback. The applications for these partially-coded, statistically correct signals include:
• Select (DFS) reference test signals, compliant with radar signals defined by FCC, ETSI Japan MIC, Korea and China standard
• Create short (Type 0-4), long (Type 5) and frequency hopping (Type 6 ) radar profiles defined in FCC 06-96 and FCC-13-22
• Create reference and Type 1-6 radar profiles defined in ETSI 301 893 Version 1.7.1
• Create fixed or variable Type 1-6 radar profiles and hopping radar Type 1-2 profiles defined in ETSI 302 502 Version 1.2.1
• Create fixed or variable Type 1-3 radar profiles and hopping radar Type 4 profile defined in Korea DFS standard.
• Create constant PRF based Type 1-4 radar signals and single pulse based or packet based staggered PRF radar Type 5 and 6 test signals defined in China DFS standard.
• Randomize the radar parameter sets of each trial with the Seed setting
• Adjust pulse width, pulse repetition interval, number of bursts, number of pulses, etc. within the range defined in the standard
• Save and recall the settings of the generated Trial List table with all parameters for repeatability testing
  

Dynamic Frequency Selection (DFS) Overview 

Unlicensed devices, typically WLAN/WiMax™, are being allowed to operate in the same frequency spectrum that is currently allocated to licensed devices, typically radar systems (mainly for military & weather). Radar systems are guaranteed to have spectrum protection. Therefore, unlicensed devices must not transmit on the same frequency upon which a nearby radar system is operating. They must instead choose an operating channel that covers a frequency range not currently utilized by a nearby operational radar. This choice is made dynamically during operation, and is called Dynamic Frequency Selection (DFS). Currently DFS is mainly defined in U-NII band, which is used primarily for WLAN systems, including three frequency bands: 5.150 to 5.350 GHz, 5.470 to 5.725 GHz, and 5.735 to 5.915 GHz. DFS tests typically define the radar profiles which describe the RF and time domain characteristics of a given radar signal type. The radar profiles are defined by various government communication agencies including FCC, ETSI Japan MIC, Korea and China DFS standard. 

Dynamic Frequency Selection (DFS) Test

N7607B Signal Studio for DFS radar profiles can help you create FCC Part 15 Sub part E (FCC 06-96 and FCC 13-22), ETSI EN 303 893 v1.7.1, ETSI EN 302 502 V1.2.1, Japan MIC, Korea and China standard-compliant radar signals for DFS test, which can be used for R&D or performance test. N7607B provides a user-friendly interface to let you easily generate radar test signals with the following steps: 

1. Select DFS in the tree view. Next, select Radar Profiles, and use the drop-down arrow to display a menu from which you can select the desired radar profile from FCC, ETSI Japan MIC, Korea or China standard.
2. Select FCC in the tree view. Next, select Radar Type, and use the drop-down arrow to display a menu from which you can select the desired type, for example, Type 5.
3. Select Create Trial List. A new window named “Radar Profile Display” will be displayed as the bottom graph.
4. Select Download for each trial to generate and download the waveform to the signal generator for playback. The signal for each trial is unique as required by the standards.