Table 1. Theoretical maximum deformation...

Table 1.

Theoretical maximum deformation rates (⁠ $D_{\max}$ ⁠) measurable for selected SAR sensors when a linear (⁠ $4 π / λ (Δ T D_{1})$ ⁠), quadratic (⁠ $4 π / λ (Δ T^{2} D_{2})$ ⁠) or cubic (⁠ $4 π / λ (Δ T^{3} D_{3})$ ⁠) deformation model is used. It is noted that higher displacement rates can be measured when constellation revisit times are used

SAR sensor	$Δ T$ : days	D_max: cm/year
SAR sensor	$Δ T$ : days	Linear model	Quadratic model	Cubic model
ALOS-1	46	46.8	186	985.4
Envisat	35	14.7	76.2	530
RADARSAT-1	24	21.3	162	1644
COSMO-SkyMed	16	17.7	202	3073
Sentinel-1	12	42.6	648.5	13159
TerraSAR-X	11	25.7	427	9457.4

SAR sensor	$Δ T$ : days	D_max: cm/year
SAR sensor	$Δ T$ : days	Linear model	Quadratic model	Cubic model
ALOS-1	46	46.8	186	985.4
Envisat	35	14.7	76.2	530
RADARSAT-1	24	21.3	162	1644
COSMO-SkyMed	16	17.7	202	3073
Sentinel-1	12	42.6	648.5	13159
TerraSAR-X	11	25.7	427	9457.4

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