Peak Detector | momoiot

Radar

Peak Detector

1	The peak detector scans the entire Range-Doppler map.
2	It compares the magnitude values of all RD bins.
3	It extracts the top N peaks with the largest magnitudes.

1. Signal Flow and Processing

2. Example Report from radar SoC

As an example of the peak detector output, up to 27 data entries extracted from the RD map of a single frame are transmitted.

구분	필드명	Dword	Bit Range	설명
Header	Fixed Pattern	Dword 0	[31:24]	1010 1010
Header	Fixed Pattern	Dword 0	[23:22]	1
Header	Fixed Pattern	Dword 0	[21:20]	0
Header	Reserved	Dword 0	[19:6]	0000 0000 0000 00
Header	CFG_LEN_RPT	Dword 0	[5:0]	Payload Dword 길이 (max 27)
Data	DFFT_MAX0_DIDX	Dword 1	[30:24]	Doppler FFT peak index (MAX0)
Data	Reserved	Dword 1	[23]	0
Data	DFFT_MAX0_RIDX	Dword 1	[22:16]	Range FFT peak index (MAX0)
Data	Reserved	Dword 1	[15:0]	0
Data	DFFT_MAX0_VALUE	Dword 2	[31:0]	2D FFT peak magnitude (MAX0)
Data	Reserved	Dword 3	[31:0]	0
Data	DFFT_MAX1_DIDX	Dword 4	[30:24]	Doppler FFT peak index (MAX1)
Data	Reserved	Dword 4	[23]	0
Data	DFFT_MAX1_RIDX	Dword 4	[22:16]	Range FFT peak index (MAX1)
Data	Reserved	Dword 4	[15:0]	0
Data	DFFT_MAX1_VALUE	Dword 5	[31:0]	2D FFT peak magnitude (MAX1)
Data	Reserved	Dword 6	[31:0]	0
Data	…	Dword …	—	동일 구조 반복
Data	DFFT_MAXm_DIDX	Dword (3m-2)	[30:24]	Doppler FFT peak index (MAXm)
Data	DFFT_MAXm_RIDX	Dword (3m-2)	[22:16]	Range FFT peak index (MAXm)
Data	DFFT_MAXm_VALUE	Dword (3m-1)	[31:0]	2D FFT peak magnitude (MAXm)
Data	Reserved	Dword (3m)	[31:0]	0
Tail	Check_sum	Dword (3m+1)	[31:16]	프레임 데이터 checksum
Tail	Fixed Pattern	Dword (3m+1)	[15:14]	1
Tail	Fixed Pattern	Dword (3m+1)	[13:12]	0
Tail	Reserved	Dword (3m+1)	[11:8]	0
Tail	Fixed Pattern	Dword (3m+1)	[7:0]	0101 0101

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https://www.iclegend.com/en/

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https://www.edworks.co.kr

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