AWR1843BOOST: The SRR lab How to ingress the USRR range and doppler

Hi,

   Thank for your reply,  I will use the same strategy, but the object range and EVM data do not match, for example, the object is 10 m away but the EVM data is 15 m.  How to resolve the problem.

Hi,

   A gentle reminder

Hello,

Please provide more info on your issue. How did you change your config? What are the conditions of your testing? How are you verifying that the EVM data is 15m?

best,

Gigliotti

Hi,

the EVM to human object for constant 10 meters, however the visualizer displays a 15-meter range for human objects. USRR 30meter was my testing condition. I'll post the modified setup below.

/*
 *   @file  srr_config_consts.h
 *
 *   @brief
 *      This file holds constants related to the USRR20 chirp configuration. 
 *
 *  \par
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 *
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 *    notice, this list of conditions and the following disclaimer.
 *
 *    Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 *    Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
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 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 */

/*! @brief Ultra short range chirp profile - 20 m range, 4.3cm resolution. better angular resolution,  approximately 18kmph max - vel. */
#define PROFILE_USRR_PROFILE_ID              (1U)
#define PROFILE_USRR_HPFCORNER_FREQ1_VAL     RL_RX_HPF1_175_KHz
#define PROFILE_USRR_HPFCORNER_FREQ2_VAL     RL_RX_HPF2_350_KHz
#define PROFILE_USRR_RX_GAIN_VAL             (30U)
#define PROFILE_USRR_DIGOUT_SAMPLERATE_VAL   (12500U)
#define PROFILE_USRR_ADC_SAMPLE_VAL          (512U)
#define PROFILE_USRR_IDLE_TIME_VAL           (700U)
#define PROFILE_USRR_RAMP_END_TIME_VAL       (4400U)
#define PROFILE_USRR_START_FREQ_GHZ		  (77.01f)
#define PROFILE_USRR_START_FREQ_VAL          (CONV_FREQ_GHZ_TO_CODEWORD(PROFILE_USRR_START_FREQ_GHZ))
#define PROFILE_USRR_TXOUT_POWER_BACKOFF     (0U)
#define PROFILE_USRR_TXPHASESHIFTER_VAL      (0U)
#define PROFILE_USRR_FREQ_SLOPE_MHZ_PER_US   (56.25f)
#define PROFILE_USRR_FREQ_SLOPE_VAL          (CONV_SLOPE_MHZ_PER_US_TO_CODEWORD(PROFILE_USRR_FREQ_SLOPE_MHZ_PER_US))
#define PROFILE_USRR_TX_START_TIME_VAL       (100U)  // 1us
#define PROFILE_USRR_ADC_START_TIME_VAL      (300U)

#define CHIRP_USRR_0_PROFILE_ID                (1U)
#define CHIRP_USRR_0_START_INDEX               (128U + 0U)
#define CHIRP_USRR_0_END_INDEX                 (128U + 0U)
#define CHIRP_USRR_0_START_FREQ_VAL            (0U)
#define CHIRP_USRR_0_FREQ_SLOPE_VAL            (0U)
#define CHIRP_USRR_0_IDLE_TIME_VAL             (0U)
#define CHIRP_USRR_0_ADC_START_TIME_VAL        (0U)
#define CHIRP_USRR_0_TX_CHANNEL                (TX_CHANNEL_1_ENABLE)

#define CHIRP_USRR_1_PROFILE_ID                (1U)
#define CHIRP_USRR_1_START_INDEX               (128U + 1U)
#define CHIRP_USRR_1_END_INDEX                 (128U + 1U)
#define CHIRP_USRR_1_START_FREQ_VAL            (0U)
#define CHIRP_USRR_1_FREQ_SLOPE_VAL            (0U)
#define CHIRP_USRR_1_IDLE_TIME_VAL             (0U)
#define CHIRP_USRR_1_ADC_START_TIME_VAL        (0U)
#define CHIRP_USRR_1_TX_CHANNEL                (TX_CHANNEL_2_ENABLE)

/* SUBFRAME Configuration */
#define SUBFRAME_USRR_CHIRP_START_IDX           (CHIRP_USRR_0_START_INDEX)
#define SUBFRAME_USRR_CHIRP_END_IDX             (CHIRP_USRR_1_END_INDEX)
#define SUBFRAME_USRR_LOOP_COUNT                (32U)
#define SUBFRAME_USRR_PERIODICITY_VAL           (6000000U) // 30ms
#define SUBFRAME_USRR_TRIGGER_DELAY_VAL         (0U)
#define SUBFRAME_USRR_NUM_REAL_ADC_SAMPLES      (PROFILE_USRR_ADC_SAMPLE_VAL * 2)
#define SUBFRAME_USRR_NUM_CMPLX_ADC_SAMPLES     (PROFILE_USRR_ADC_SAMPLE_VAL)
#define SUBFRAME_USRR_CHIRPTYPE_0_NUM_CHIRPS    ((CHIRP_USRR_0_END_INDEX - CHIRP_USRR_0_START_INDEX + 1)*SUBFRAME_USRR_LOOP_COUNT)
#define SUBFRAME_USRR_CHIRPTYPE_1_NUM_CHIRPS    ((CHIRP_USRR_1_END_INDEX - CHIRP_USRR_1_START_INDEX + 1)*SUBFRAME_USRR_LOOP_COUNT)
#define SUBFRAME_USRR_NUM_TX					(2U)
#define SUBFRAME_USRR_NUM_VIRT_ANT				(SUBFRAME_USRR_NUM_TX*NUM_RX_CHANNELS)
#define SUBFRAME_USRR_NUM_ANGLE_BINS			(32U)
#define SUBFRAME_USRR_NUM_CHIRPS_TOTAL			((SUBFRAME_USRR_CHIRP_END_IDX - SUBFRAME_USRR_CHIRP_START_IDX + 1) * SUBFRAME_USRR_LOOP_COUNT)

/*! @brief Derived parameters. */
#define PROFILE_USRR_RANGE_RESOLUTION_METERS        ((MMWDEMO_SPEED_OF_LIGHT_IN_METERS_PER_USEC * PROFILE_USRR_DIGOUT_SAMPLERATE_VAL)/ (2000.0f * PROFILE_USRR_FREQ_SLOPE_MHZ_PER_US * SUBFRAME_USRR_NUM_CMPLX_ADC_SAMPLES))

#define SUBFRAME_USRR_CHIRPTYPE_0_CHIRP_REPETITION_PERIOD_US (((CHIRP_USRR_0_IDLE_TIME_VAL + PROFILE_USRR_IDLE_TIME_VAL + PROFILE_USRR_RAMP_END_TIME_VAL)/100.0f))
#define SUBFRAME_USRR_CHIRPTYPE_1_CHIRP_REPETITION_PERIOD_US (((CHIRP_USRR_1_IDLE_TIME_VAL + PROFILE_USRR_IDLE_TIME_VAL + PROFILE_USRR_RAMP_END_TIME_VAL)/100.0f))

#define SUBFRAME_USRR_CHIRPTYPE_0_VEL_RESOLUTION_M_P_S       (((1000.0f/(SUBFRAME_USRR_CHIRPTYPE_0_CHIRP_REPETITION_PERIOD_US + SUBFRAME_USRR_CHIRPTYPE_1_CHIRP_REPETITION_PERIOD_US))/SUBFRAME_USRR_CHIRPTYPE_0_NUM_CHIRPS)*(PROFILE_SRR_LAMBDA_MILLIMETER/2.0f))
#define SUBFRAME_USRR_CHIRPTYPE_0_MAX_VEL_M_P_S     (SUBFRAME_USRR_CHIRPTYPE_0_VEL_RESOLUTION_M_P_S*SUBFRAME_USRR_CHIRPTYPE_0_NUM_CHIRPS/2)

#define SUBFRAME_USRR_CHIRPTYPE_1_VEL_RESOLUTION_M_P_S       (((1000.0f/(SUBFRAME_USRR_CHIRPTYPE_0_CHIRP_REPETITION_PERIOD_US + SUBFRAME_USRR_CHIRPTYPE_1_CHIRP_REPETITION_PERIOD_US))/SUBFRAME_USRR_CHIRPTYPE_1_NUM_CHIRPS)*(PROFILE_SRR_LAMBDA_MILLIMETER/2.0f))
#define SUBFRAME_USRR_CHIRPTYPE_1_MAX_VEL_M_P_S     (SUBFRAME_USRR_CHIRPTYPE_1_VEL_RESOLUTION_M_P_S*SUBFRAME_USRR_CHIRPTYPE_1_NUM_CHIRPS/2)
#define SUBFRAME_USRR_MIN_SNR_dB (12.0f)

#define SUBFRAME_USRR_NUM_CHIRPTYPES (2U)

if possible, kindly provide USRR 30 meter configuration.

thank you

mrr_config_chirp_design_USRR30.h

Here is the 30m USRR configuration.

I'll use the configuration, but it doesn't function and output no data.

That is because it for a different demo. You need to modify your existing config in order to extend the range. Similar to what is in the USRR 30 config.

I will be attending the USRR 30 meter modified configuration in the previous post; kindly review and provide feedback.

On first glance you have to decrease the PROFILE_USRR_IDLE_TIME_VAL to 500u. This will help extend the max range.

Best,

Gigliotti

Hi,

I appreciate your response and will change PROFILE_USRR_IDLE_TIME_VAL to 500u. but I'll have the same problem.

If at all possible, kindly provide AWR1642 USRR 30 meter configuration.

Hi,

   A gentle reminder

Hi,

Thank you for your reply. I will use the configuration in srr_config_chirp_design_USRR30.h, but I will still have the same problem (the object is 10 m away, but the EVM data is 15 m).

Best,

Sriram

Hello,

So this sounds very incorrect. There are small discrepancies in the radar but usually not as large as 5m. Please repeat this experiment in a large open area and record a person slowly walking away from the sensor to 15-20m. Provide the recording of the person walking and a screen recording of the GUI so we can see this issue.

best,

Gigliotti

Hi,

     below i will attach the video and picture .

The USRR (blue dot) data does not match the EVM data, but the SRR (green dot) rage and EVM data are accurate. Kindly provide a reliable detection. solution for USRR 30 meters.

Hi,

   i am using  20 meter  USRR  configuration, this  configuration  rage is  reliable however i had an issue while using   30 meter USRR configuration. 

Hi,

   A gentle reminder