Waveform Configuration
.
1. Waveform
Parameter | Default | Range | Description | |
Output Waveform
|
CW + SAW
|
CW | Continuous Sinusoidal Wave, doppler sensor usage or just for test | |
CW + SAW |
Up-chirp of pattern SAW for FMCW radar application Mainly used for near-distance object detection(Home IoT) |
|||
CW +TRI |
Up&Down-chirp of pattern triangle or FMCW radar application Mainly used for distant object detection(Vehicle/Car) |
2. Chirp Cycle
Note. A chirp is the basic cycle that can measure range/distance.
Parameter | Default [us] | Range [us] | Description |
Start_T0 | 20 | 20~1,000,000 | Value of “Start” in us |
UP_T1 | 420 | 128~1,000,000 | Up-chirp duration |
DOWN_T2 | 150 | 60~1,000,000 | Down-chirp duration, must be no less than T1 x 1/4. |
STOP_T3 | 407 | 100~1,000,000 | Value of “Stop” in us |
3. Frame Structure
Note. N chirp cycles constitute one frame and to measure speed, data in frame units is required.
Parameter | Default [us] | Range [us] | Description |
Chirp No. Per Frame | 32 | >=1 | For setting the chirp number of a single frame. |
T_PRE Time | 20 | >=1 | For setting head delay of a frame. |
T_NOP Time | 76 | >=1 |
For setting tail delay of a frame. when in Low Power Mode, must be no less than (2 x T_2PD + 1) |
4. Low Power Mode
When the box is checked, the chip will enter Low-Power mode during T_NOP.
Parameter | Default [us] | Range [us] | Description |
T_2PD Time | 22 |
22 <= T_2PD < T_NOP/2 |
For setting the duration of Low-Power mode. |