Ranging Performance of the IEEE 802.15.4a UWB Standard under FCC/CEPT Regulations

Table 1

Preamble characteristic.

Ns	L	𝑁pr	𝑇chip (ns)	𝑇pr (μs)	PRF (MHz)	MRF (MHz)	ERF (MHz)	𝑁1ms
31	16	16	≈2	15.9	31.2	16.1	0.256	16
31	16	64	≈2	63.6	31.2	16.1	1.024	64
31	16	256	≈2	254.4	31.2	16.1	4.096	256
31	16	1024	≈2	1017.4	31.2	16.1	16.1	1006
31	16	4096	≈2	4069.7	31.2	16.1	16.1	1006
31	64	16	≈2	63.6	7.8	4.03	0.256	16
31	64	64	≈2	254.4	7.8	4.03	1.024	64
31	64	256	≈2	1017.4	7.8	4.03	4.03	251
31	64	1024	≈2	4069.7	7.8	4.03	4.03	251
31	64	4096	≈2	16279.0	7.8	4.03	4.03	251
127	4	16	≈2	16.3	124.8	62.89	1.024	16
127	4	64	≈2	65.1	124.8	62.89	4.096	64
127	4	256	≈2	260.5	124.8	62.89	16.384	256
127	4	1024	≈2	1042.1	124.8	62.89	62.89	982
127	4	4096	≈2	4168.2	124.8	62.89	62.89	982