TI中文支持网According to following link,
http://dev.ti.com/tirex/content/simplelink_cc2640r2_sdk_2_20_00_49/docs/blestack/ble_user_guide/html/localization/index.html
In order to get a good estimate of ϕ (phase), all other intentional phase shifts in the signal should be removed. AoA packets (based on the BLE PHY) achieve this byadding a section of consecutive 1’s as part of the PDU, effectively transmitting a single tone at the carrier frequency of 250kHz.
When we use sniffer to capture the TI sender AoA PDU, the packet data isn't section of consecutive 1’s.
1. Is there a explanation of this behavior?
2. What are the usage/porpose of thosenon consecutive 1’s packet data?
3. How to generate those data for the TI AoA receiver?
4. If we sent a section of consecutive 1’s PDU as following to TI AoA receiver, Will the TI receiver collect correct I/Q samples and estimate the precise angle?
0x1E, 0xFF, 0x0D, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
Viki Shi：
Our E2E engineer has followed up your case, please check the answer here: e2e.ti.com/…/752653
